CN112309164B

CN112309164B - Parking auxiliary locating system and installation and operation method

Info

Publication number: CN112309164B
Application number: CN202011177494.2A
Authority: CN
Inventors: 张新颜; 彭慧伶; 杨世亮; 赵志锋; 戚刚; 耿琳; 翟晓军; 许晓磊; 陈方; 孙强; 张婷; 揣大林; 刘帅鹏; 余乐涵; 苗洪锋; 王亚红
Original assignee: Henan Jingxin Engineering Supervision Co ltd; Luoyang Institute of Science and Technology
Current assignee: Henan Jingxin Engineering Management Consulting Co ltd; Luoyang Institute of Science and Technology
Priority date: 2020-10-27
Filing date: 2020-10-27
Publication date: 2021-09-07
Anticipated expiration: 2040-10-27
Also published as: CN112309164A

Abstract

A parking auxiliary position-finding system and an installation and operation method thereof comprise a parking position state monitor and a parking position-finding device, wherein the parking position state monitor is fixedly embedded in the ground of a parking position, and the parking position-finding device is arranged in a vehicle; the parking space state monitor and the parking position finder are respectively provided with a Beidou navigation module and a micropower wireless communication module, the parking space state monitor and the parking position finder position self longitude and latitude coordinates and keep clock synchronization through the Beidou navigation module, and the communication is carried out through the micropower wireless communication module to provide parking space information for vehicles, so that the problems of low efficiency, long time and easy traffic accidents caused by blind searching of parking spaces by drivers at present are solved; the parking auxiliary locating system does not need networking, does not occupy the valuable short message communication channel of the Beidou navigation system, and does not need borrowing the public wireless communication network, so the parking auxiliary locating system has the advantages of simple installation and setting, reliable operation, no network maintenance and no operation cost, and has great commercial popularization value.

Description

Parking auxiliary locating system and installation and operation method

Technical Field

The invention relates to the technical field of urban municipal construction, in particular to a parking auxiliary locating system and an installation and operation method.

Background

At present, the domestic private car inventory has broken through 2.0 hundred million cars, and the problem of parking outside becomes a problem for each private car driver; when a private car driver searches for a parking space, the private car driver needs to slowly drive on a road and blindly search for a parking available position through visual inspection, so that the efficiency is low, the required time is long, and the normal driving of other vehicles is influenced; meanwhile, the visual search of the parking space disperses the attention of drivers and is easy to cause traffic accidents; therefore, how to assist a driver of a private car to automatically find a parking space through a technical means becomes a problem which needs to be solved urgently in the current urban municipal construction field.

Disclosure of Invention

In order to overcome the defects in the background technology, the invention discloses a parking auxiliary locating system and an installation and operation method; the parking auxiliary locating system comprises a parking space state monitor and a parking locating device, wherein the parking space state monitor is fixedly embedded in the ground of a parking space, and the parking locating device is arranged in a vehicle; the utility model discloses a parking stall state monitoring device, including parking stall state monitoring device, parking position finder, the ware is sought to the parking stall, all be provided with big dipper navigation module and micropower wireless communication module in the ware, parking stall state monitoring device, the ware is sought to the parking is through big dipper navigation module location self longitude and latitude coordinate and keep the clock synchronous, parking stall state monitoring device, the ware is sought to the parking is communicated through micropower wireless communication module, for the vehicle provides parking stall information, the initiative guide vehicle traveles to the parking stall, consequently, but the blind problem of looking for the produced inefficiency in parking stall of current navigating mate, long time, cause the traffic accident easily.

In order to realize the purpose, the invention adopts the following technical scheme: a parking auxiliary position finding system comprises a parking position state monitor and a parking position finder, wherein the parking position state monitor is fixedly embedded in the ground of a parking position, and the parking position finder is arranged in a vehicle; the parking space state monitor and the parking position finder are respectively provided with a Beidou navigation module and a micropower wireless communication module, position longitude and latitude coordinates of the parking space state monitor and the parking position finder through the Beidou navigation module and keep clock synchronization, and position finding communication is carried out through the micropower wireless communication module; the parking space state monitor and the parking position finder keep clock synchronization through the Beidou navigation module, so that the parking space state monitor and the parking position finder have extremely high clock synchronization precision, the accuracy of communication time slots between the parking space state monitor and the parking position finder is ensured, and communication collision possibly caused by disordered communication time slots is prevented from causing communication failure.

Furthermore, a loudspeaker is arranged in the parking position finder, and the parking position finder guides the vehicle to run to a parking space through voice; the parking position finder is used for guiding the vehicle by voice, and the parking auxiliary position finding system has the advantage of simple whole.

Preferably, the parking position finder is connected with an on-vehicle navigation device or a smart phone through Bluetooth communication; a parking auxiliary position finding APP is arranged in the vehicle-mounted navigation equipment or the smart phone, the parking auxiliary position finding APP calls a third-party vehicle navigation APP, and the vehicle is guided to run to a parking space through images and voice; the mode that the APP is called by the aid of the self APP is adopted, so that a parking auxiliary locating system builder has complete control authority, and authorization of the APP owner of the third-party driving navigation is required.

Preferably, the parking position finder is connected with a vehicle-mounted navigation device or a smart phone through Bluetooth communication, transmits the obtained parking position information to a vehicle navigation APP arranged in the vehicle-mounted navigation device or the smart phone, and guides the vehicle to run to a parking space through images and voice; the mode that adopts and give parking position information transmission for third party driving navigation APP owner can make the supplementary system of seeking a position of parking obtain popularization and application rapidly with the help of the existing market share of third party driving navigation APP owner.

Furthermore, the parking space state monitor comprises a monitor outer shell, a monitor inner shell, a monitor lithium battery, a monitor PCB combination, a solar battery and glass; the parking space state monitor comprises a monitor outer shell, a monitor inner shell, a parking space state monitor outer shell, a monitor inner shell and a monitor outer shell, wherein the monitor outer shell and the monitor inner shell are cylindrical, the monitor inner shell is fixedly arranged in the monitor outer shell through threads, and the monitor outer shell and the monitor inner shell are in double-layer threaded connection structure design; the inner shell of the parking space state monitor which is taken out and has a fault is communicated with other structural parts and can be continuously and repeatedly used after being maintained, the problem that the existing underground structural parts are scrapped after being taken out is solved, and the construction and maintenance cost of the parking auxiliary locating system is reduced; in addition, the inner shell structure of the parking space state monitor is designed in a detachable mode so as to be convenient for maintaining the internal structural components; the monitor lithium battery is fixedly arranged at the bottom of the cavity of the monitor inner shell, the monitor lithium battery adopts four commercially available 18650 standard lithium batteries, and is connected in parallel to form a lithium battery pack which has higher battery capacity and ensures that sufficient electric quantity is supplied under the condition of insufficient sunshine in continuous rainy days; the monitor PCB combination is fixedly clamped on the upper part of the monitor lithium battery through a positioning bone arranged on the periphery of the inner cavity of the parking space state monitor inner shell; the solar cell is fixedly bonded on the upper part of an FR4 board and is clamped on the upper part of a monitor PCB board assembly through a positioning bone arranged on the periphery of the inner cavity of a parking space state monitor inner shell, a laser ranging hole and an antenna hole are arranged on an FR4 board for fixing the solar cell, a laser ranging module is arranged on the monitor PCB board assembly corresponding to the laser ranging hole, the laser ranging hole is used for laser passing when the laser ranging module works, and the antenna hole enables a micro-power wireless communication spiral antenna arranged on the monitor PCB board assembly to extend upwards to be close to the ground as far as possible, so that the micro-power wireless communication has a longer communication distance; the glass is fixed and sealed at the upper port of the monitor inner shell through the viscose, so that a completely sealed cavity is formed between the parking space state monitor inner shell and the glass; support foam is arranged between the solar cell and the monitor PCB combination at the lower part of the solar cell and between the solar cell and the glass, and the support foam protects the monitor PCB and the solar cell from impact vibration, so that the parking space state monitor has longer service life.

Furthermore, the monitor PCB assembly comprises a single chip microcomputer, a micro-power wireless communication module, a Beidou navigation module, a laser ranging module, a FLASH storage chip, a power supply conversion module and a working state indicator lamp; the power supply conversion module is electrically connected with the solar battery and the monitor lithium battery and provides power for the single chip microcomputer, the micro-power wireless communication module, the Beidou navigation module, the laser ranging module and the FLASH storage chip; meanwhile, the power supply conversion module also dynamically detects the voltage of a lithium battery of the monitor, when the power supply conversion module detects that the voltage of the lithium battery is lower than 3.3V, a signal is sent to the single chip microcomputer, the single chip microcomputer automatically enters a dormant state, and the parking space state monitor enters a low power consumption mode at the moment, so that the parking space state monitor has extremely low current consumption and prevents the lithium battery from being damaged due to over-discharge; the micro-power wireless communication module, the Beidou navigation module and the laser ranging module stop working when the single chip microcomputer is in a dormant state; when the power supply conversion module detects that the voltage of the lithium battery is higher than 3.3V, the single chip microcomputer is awakened; under the condition of illumination, the power supply conversion module converts the voltage of the electric energy generated by the solar battery and charges the lithium battery pack; the single chip microcomputer controls the micro-power wireless communication module, the Beidou navigation module and the laser ranging module to work coordinately; the Beidou navigation module receives a Beidou navigation satellite positioning signal and a time service signal, and the longitude and latitude coordinates of the positioning parking space state monitor and the clock are synchronously calibrated; the Beidou navigation module receives a Beidou navigation satellite positioning signal and a time service signal when working for the first time, positions self longitude and latitude coordinates and clock synchronous calibration, stores the self longitude and latitude coordinates in a FLASH storage chip, continuously carries out clock synchronous calibration at the whole point in the subsequent work of the parking space state monitor, but carries out self longitude and latitude coordinate positioning once again at the whole point within 24 hours after the Beidou navigation module starts working for the first time, and stores the self longitude and latitude coordinates in a FLASH storage chip, removes two longitude and latitude coordinates with the maximum deviation after the positioning of the longitude and latitude coordinates for 24 times is finished, and stores the central point after fitting the rest longitude and latitude coordinates in the FLASH storage chip as the final longitude and latitude coordinates without updating; the micropower wireless communication module is in micropower wireless communication with the parking position finder and provides parking position information for the parking position finder; the laser ranging module monitors the parking state above the parking space, and the working mode is as follows: the laser ranging module measures the distance every five seconds, when the measured distance is below 50cm, it is judged that a vehicle is parked above the parking space, and when the measured distance is greater than 50cm, it is judged that no vehicle is parked above the parking space; the operating condition pilot lamp shows the operating condition of parking stall state monitor, and the pilot lamp is red LED, and parking stall state monitor three kinds of operating condition altogether: the parking position finder is used for sending a position finding signal to activate when the storage state is switched to a normal working state; the system comprises a parking space, a red LED, a normal working state and a control circuit, wherein the normal working state comprises a response state and a non-response state, the response state refers to that no vehicle is parked above the parking space, the non-response state refers to that no vehicle is parked above the parking space, and the red LED flickers once every two seconds in the normal working state; thirdly, a dormant state is achieved, when the voltage of the lithium battery is lower than 3.3V, the lithium battery enters the dormant state, the red LED flickers once every ten seconds, and no response is given to any parking space coordinate signal or any position searching signal in the dormant state; in addition, when the parking space state monitor appears unusually, red LED will no longer twinkle, shows that the parking space state monitor needs to be changed.

Furthermore, the parking position finder comprises a position finder bottom shell, a position finder lithium battery, a position finder PCB combination, a position finder upper cover and a position finder sucker; the upper cover of the position finder is fixedly arranged on the upper part of the bottom shell of the position finder to form a closed cavity of the position finder; the position finder lithium battery is arranged at the bottom of the closed cavity of the position finder, and the position finder PCB is arranged in the closed cavity of the position finder in a combined manner and is positioned at the upper part of the position finder lithium battery; the upper part of the position finder upper cover is provided with a position finding button, a position finding communication indicating lamp post and a power state indicating lamp post, and the side edge of the position finder upper cover is provided with a USB charging port; and a position finder sucker is fixedly arranged at the lower part of the position finder bottom shell.

Furthermore, the locator PCB assembly comprises a single chip microcomputer, a micro-power wireless communication module, a Beidou navigation module, a Bluetooth communication module, a locator communication indicator lamp, a power state indicator lamp, a power conversion module and a locator lithium battery; the power supply conversion module is electrically connected with the USB charging port and the locator lithium battery, supplies power to the single chip microcomputer, the micro-power wireless communication module, the Beidou navigation module, the Bluetooth communication module and the FLASH storage chip, and detects the voltage of the locator lithium battery; the single chip microcomputer controls the micro-power wireless communication module, the Beidou navigation module and the Bluetooth communication module to work in a coordinated mode; the Beidou navigation module receives a Beidou navigation satellite positioning signal and a time service signal, and synchronously calibrates the longitude and latitude coordinates of the positioning parking positioner and a clock, wherein the longitude and latitude coordinates of the positioning parking positioner are dynamically updated, and the clock synchronous calibration is carried out once per hour; the micropower wireless communication module is in micropower wireless communication with the parking space state monitor and provides parking position information for the parking position finder; the searching communication indicator light displays the communication state of the micropower wireless communication module and is a red-green double-color LED; the power state indicator lamp displays the electric quantity storage state of the lithium battery of the position finder, and is a red LED; the parking position finder has three working states, and is switched by a position finding button: the method comprises the steps that firstly, in a storage state, a single chip microcomputer is in a dormant state, a micro-power wireless communication module, a Beidou navigation module and a Bluetooth communication module are all in a closed state, and a power state indicator lamp flickers once every five seconds in the storage state; secondly, in a standby state, a position searching button is pressed for three seconds, the parking position searching device is switched from a storage state to a standby state, the single chip microcomputer, the micro-power wireless communication module, the Beidou navigation module and the Bluetooth communication module are in normal working states in the standby state, and the power state indicator lamp flickers once every two seconds in the standby state; thirdly, in a working state, the locating button is pressed for three seconds in a standby state, the locating communication indicator lamp is displayed to be orange at the moment, the connection of the Bluetooth and other equipment is in progress, the locating communication indicator lamp is turned off after the connection of the Bluetooth and other equipment is finished, and the power supply state indicator lamp flickers once every second at the moment; when the voltage of a lithium battery in the parking position finder is lower than the set 3.3V, the power state indicator lamp generates stroboflash at the moment to remind that charging is needed; when the power supply state indicator lamp is turned off, the power supply of the lithium battery in the parking position finder is exhausted or fails; under the working state, the red light of the position-finding communication indicator light flickers to represent a micro-power wireless transmitting signal, and the green light flickers to represent a micro-power wireless receiving signal.

An installation and operation method of a parking auxiliary locating system comprises the following specific contents:

s1, a method for installing and adjusting the parking space state monitor comprises the following steps: punching a hole in the middle of a parking space marked on the ground by using a puncher, and fixedly arranging a parking space state monitor in the hole; a parking position finder is used for awakening the parking position state monitor; the Beidou navigation module of the parking space state monitor automatically searches for a Beidou navigation satellite, completes self longitude and latitude coordinate calibration and clock synchronization calibration, stores the calibrated longitude and latitude coordinates, and then closes the Beidou navigation module; the subsequent parking space state monitor automatically opens the Beidou navigation module at the set time, and finishes self longitude and latitude coordinate calibration and clock synchronization calibration again; the parking space state monitor automatically optimizes and updates the longitude and latitude coordinates of the parking space state monitor, when the parking space state monitor judges that the longitude and latitude coordinates of the parking space state monitor are in an optimal state, the updating of the longitude and latitude coordinates of the parking space state monitor is stopped, and the Beidou navigation module is automatically opened at set time to only perform clock synchronization calibration;

s2, a mounting method of the parking position finder comprises the following steps: the parking position finder is fixedly arranged at a proper position in the vehicle through a position finder sucker, the parking position finder is connected with a power supply in the vehicle through a USB (universal serial bus) line, and the parking position finder is connected with vehicle-mounted navigation equipment or a smart phone through Bluetooth; the parking position finder automatically searches for the Beidou navigation satellite, dynamically updates the longitude and latitude coordinates of the parking position finder, and performs clock synchronization calibration at the whole point;

s3, an operation method of the parking auxiliary position searching system comprises the following steps:

s31, a communication method between the parking space state monitor and the parking position finder is as follows: the parking space state monitor and the parking position finder are in wireless communication through micropower, the communication mode is periodic polling, namely a communication period T is set between the parking space state monitor and the parking position finder and is 1 second; 499 communication time slots T are set in the communication period T, the communication time slots T are 2 milliseconds, the first 60 communication time slots T are allocated to the parking position finder to send a position finding signal, and the last 439 communication time slots T are allocated to the parking position state monitor to send a parking position coordinate signal; the position searching signal sent by the parking position searching device and the parking position coordinate signal sent by the parking position state monitor both comprise position searching signal time slot numbers, and the maximum number of the position searching signal time slot numbers is 60; the position searching signal also comprises longitude and latitude coordinate information of the parking position searching device, and the parking position coordinate signal also comprises longitude and latitude coordinate information of the parking position state monitor;

s32, a starting method of the parking position finder comprises the following steps: when a parking space needs to be searched, a vehicle driver presses a position searching button of the parking position finder, or the parking position finder is started by voice and a vehicle-mounted navigator or a smart phone in an interactive mode, and the parking space is searched;

s33, a communication time slot allocation method of the parking position finder: after the parking position finder is started, the communication time slot is distributed in a random mode; before sending the locating signal, the parking locating device firstly monitors whether the parking space coordinate signal sent by the parking space state monitor or the locating signal sent by other parking locating devices exists, and if the parking space coordinate signal is monitored or the locating signal is foundBit signal, analyzing the coordinate signal of parking space or the time slot number n of position-finding signal contained in position-finding signal_iIf two time slot numbers of 5 and 20 are analyzed, then a positive integer 43 is randomly generated between 1 and 60 except 5 and 20 as the time slot number of the locating signal of the parking locator; in the communication cycle or the next communication cycle T, a position searching signal is sent in a 43 time slot, and the position searching signal comprises a position searching signal time slot number 43 of the parking position finder and longitude and latitude coordinate information of the parking position finder; before the vehicle reaches a parking space and finishes parking, the parking position finder sends a position finding signal in a 43 time slot of each subsequent communication period until the position finding of the vehicle is finished, and the parking position finder stops sending the position finding signal;

s34, responding conditions of the parking space state monitor: in the working process of the parking space state monitor, the laser ranging module monitors whether a vehicle is parked in a parking space in a set period of 5 seconds; when the parking space state monitor monitors that a vehicle is parked in a parking space, the parking space state monitor is in a non-response state, the parking space state monitor closes the micropower wireless communication module in the non-response state, and the single chip microcomputer is in a dormant state and does not respond to any position searching signal; the single chip microcomputer wakes up once every 5 seconds, and whether a vehicle is parked in a parking space is monitored through the laser ranging module; when the parking space state monitor monitors that the parking space does not park the vehicle, the parking space state monitor is switched to a response state, the parking space state monitor in the response state opens the micro-power wireless communication module to respond to the position finding signal, and meanwhile, the laser ranging module continues to monitor whether the parking space parks the vehicle or not in a set period of 5 seconds;

s35, the communication time slot allocation method of the parking space state monitor comprises the following steps: the communication time slot of the parking space state monitor is distributed in a random mode; when the parking space state monitor is in response state, receiving the position-finding signal sent by the parking position-finding device, firstly analyzing the position-finding signal time slot number n of the position-finding signal_iIf the time slot number is 20, calculating the distance between the longitude and latitude coordinates of the position searching signal and the longitude and latitude coordinates of the parking space state monitor; if the distance between the two is calculated to be less than the set threshold value of 150 meters, one is randomly generatedA positive integer 233 between 61 and 498 is used as a time slot number of the parking space state monitor for sending the parking space coordinate signal, and a time slot number 20 of a longitude and latitude coordinate signal of the parking space state monitor and a position searching signal of an original position searching signal is sent in a 233 time slot of the current communication period T or the next communication period T; if the distance between the two is calculated to be larger than the set threshold value of 150 meters, the parking space state monitor does not respond;

s36, a processing method for receiving a plurality of locating signals by the parking space state monitor includes: when the parking space state monitor is in a response state and receives the position searching signals of a plurality of parking position searching devices in a same signal period T, if three position searching signals with time slot numbers of 5, 20 and 43 are received, processing is carried out according to the received sequence; if any one of the received locating signals calculates that the distance between the two locating signals is smaller than a set threshold value of 150 meters, a positive integer 234 between 61 and 498 is randomly generated to serve as a time slot number for the parking space state monitor to send the parking space coordinate signal, and the longitude and latitude coordinate signal of the parking space state monitor and the locating signal time slot numbers 5, 20 and 43 of all the received locating signals are sent in the 234 time slots of the communication period T or the next communication period T; if the distances between the plurality of position searching signals and the parking space state monitor are calculated to be larger than the set threshold value of 150 meters, the parking space state monitor does not respond;

s37, a self-protection mechanism of the parking space state monitor: when the parking space state monitor detects that the voltage of a lithium battery of the built-in monitor is lower than a set threshold value of 3.3V, the single chip microcomputer automatically enters a dormant state; in a dormant state, the micro-power wireless communication module, the Beidou navigation module and the laser ranging module stop working; when the parking space state monitor detects that the voltage of the lithium battery of the built-in monitor returns to a set threshold value, the single chip microcomputer wakes up at regular time, whether a vehicle stops at the parking space is monitored through the laser ranging module, and the parking space state automatically enters a non-response state or a corresponding state.

S4, parking position finding end flag: when the parking position finder receives the parking position coordinate signal, resolving a longitudinal and latitudinal coordinate of the parking position, calculating the distance between the two according to the longitudinal and latitudinal coordinates of the parking position state monitor, taking the distance between the two as a mark for finishing parking position finding as the distance less than a set threshold value of 0.5 m, and stopping sending a position finding signal by the parking position finder at the moment;

s5, a method for guiding the vehicle by the parking position finder comprises the following steps: after receiving the parking space coordinate signal, the parking position finder analyzes the longitude and latitude coordinates of the parking space, and guides the vehicle to the parking space by voice; or the vehicle is guided to drive to the parking space through a navigation map and voice through a vehicle-mounted navigator or a smart phone;

s6, a parking timing method: when the parking position searching is finished, the parking position searching device stops sending the position searching signal, and meanwhile, the parking position searching device or the vehicle-mounted navigator or the smart phone starts timing; when the longitude and latitude coordinates of the parking position finder change and the distance between the longitude and latitude coordinates of the parking position finder and the longitude and latitude coordinates of the original parking position state monitor is larger than a set value of 2.0 meters, the parking position finder or the vehicle-mounted navigator or the smart phone finishes timing; the parking time is uploaded to a remote monitoring center through the smart phone, and the parking cost is deducted from the smart phone.

Preferably, three communication sub-periods are arranged in the communication period T according to a communication distance of 50 meters, the three communication sub-periods are 133 milliseconds, 333 milliseconds and 533 milliseconds respectively, sixty-six communication time slots are arranged in the first communication sub-period, one hundred sixty-six communication time slots are arranged in the second communication sub-period, and two hundred sixty-six communication time slots are arranged in the third communication sub-period; the first eight communication time slots t in the first communication sub-period are allocated to the parking position finder to send a position finding signal, and the last fifty eight communication time slots t are allocated to the parking position state monitor to send a parking position coordinate signal, namely, the time slot number allocated to the parking position finder in the first communication sub-period is 1-8, and the time slot number allocated to the parking position state monitor is 9-66; the first twenty communication time slots t in the second communication sub-period are allocated to the parking position finder to send a position finding signal, and the last one hundred forty six communication time slots t are allocated to the parking position state monitor to send a parking position coordinate signal, namely, the time slot numbers allocated to the parking position finder in the second communication sub-period are 67-86, and the time slot numbers allocated to the parking position state monitor are 87-233; the first thirty-two communication time slots t in the third communication sub-period are allocated to the parking position finder to send a position finding signal, and the last two hundred thirty-four communication time slots t are allocated to the parking position state monitor to send a parking position coordinate signal, namely, the time slot number allocated to the parking position finder in the third communication sub-period is 234-; by adopting the method of setting three communication sub-periods in one communication period T, the response efficiency of the parking position finder can be improved, the response time can be shortened, and meanwhile, the coordinate information of the parking position with a short distance can be preferentially obtained in one communication period;

three communication sub-periods T in the same communication periodⁱFront m ofⁱA communication time slot t, wherein the time slot numbers 1-8, 67-86, 234-265 can be randomly allocated to the parking position finder to send a position finding signal; m communication sub-periods T in the same communication period TⁱAfter (M)ⁱ-mⁱ) The communication time slot T is in the corresponding communication sub-period T according to the distance between the parking space state monitor and the parking position finderⁱThe parking space coordinate signal is sent by the parking space state monitor which is randomly allocated to the parking space state monitor, namely, the time slot numbers 9-66 of the first communication sub-period in the same communication period T can only be allocated to the parking space state monitor within 50 meters away from the parking position finder, the time slot numbers 87-233 of the second communication sub-period can only be allocated to the parking space state monitor within 50-100 meters away from the parking position finder, and the time slot numbers 266 and 499 of the third communication sub-period can only be allocated to the parking space state monitor within 100 plus 150 meters away from the parking position finder.

Due to the adoption of the technical scheme, the invention has the following beneficial effects: the invention discloses a parking auxiliary position-finding system and an installation and operation method; the parking auxiliary locating system comprises a parking space state monitor and a parking locating device, wherein the parking space state monitor is fixedly embedded in the ground of a parking space, and the parking locating device is arranged in a vehicle; the parking space state monitor and the parking position finder are respectively provided with a Beidou navigation module and a micropower wireless communication module, the parking space state monitor and the parking position finder position longitude and latitude coordinates of the parking position monitor and keep clocks synchronous through the Beidou navigation module, and the parking position monitor and the parking position finder communicate through the micropower wireless communication module to provide parking space information for vehicles and actively guide the vehicles to drive to the parking spaces, so that the problems of low efficiency, long time and easy traffic accidents caused by blind searching of parking spaces by drivers at present are solved; the parking auxiliary position finding system does not need networking, does not occupy a precious short message communication channel of a Beidou navigation system, and does not need borrowing a public wireless communication network, so the parking auxiliary position finding system has the characteristics of simple installation and setting, reliable operation, no network maintenance and no operation cost, and the parking auxiliary position finding system is combined with the existing third-party driving navigation APP and the parking charging system, has good social benefit and a definite commercial profit mode after implementation, and has great popularization and use values.

Drawings

FIG. 1 is a schematic diagram of a parking assistance locating system;

FIG. 2 is a schematic view of a parking space status monitor;

FIG. 3 is an exploded view of the parking space status monitor;

FIG. 4 is a first schematic sectional view of the parking space status monitor;

FIG. 5 is a schematic sectional view of a parking space status monitor;

FIG. 6 is a schematic block diagram of a parking space status monitor circuit;

FIG. 7 is an external view of the parking position finder;

FIG. 8 is an exploded view of the parking position finder;

FIG. 9 is a cross-sectional view of the parking finder;

FIG. 10 is a sectional view of the parking position finder showing a second position;

FIG. 11 is a first schematic block diagram of a parking position finder circuit;

fig. 12 is a second schematic block diagram of the parking position finder circuit.

In the figure: 1. a parking space state monitor; 1.1, monitor housing; 1.2, an inner monitor shell; 1.3, a monitor lithium battery; 1.4, combining a monitor PCB; 1.4.1, a laser ranging module; 1.5, a solar cell; 1.5.1, laser ranging holes; 1.6, glass; 2. a parking position finder; 2.1, a bottom shell of the position finder; 2.2, a lithium battery of the position finder; 2.3, combining the position finder PCB; 2.4, an upper cover of the position finder; 2.4.1, a seek button; 2.4.2, a position-finding communication indicator lamp post; 2.4.3, a power state indicating lamp post; 2.5, a locator sucker.

Detailed Description

The present invention will be explained in detail by the following examples, which are disclosed for the purpose of protecting all technical improvements within the scope of the present invention.

The first embodiment is as follows:

a parking auxiliary position searching system comprises a parking position state monitor 1 and a parking position searching device 2, wherein the parking position state monitor 1 is fixedly embedded in the ground of a parking position, and the parking position searching device 2 is arranged in a vehicle; the parking space state monitor 1 and the parking position finder 2 are respectively provided with a Beidou navigation module and a micropower wireless communication module, the parking space state monitor 1 and the parking position finder 2 position self longitude and latitude coordinates and keep clock synchronization through the Beidou navigation module, and position finding communication is carried out through the micropower wireless communication module;

the parking position finder 2 is connected with an on-vehicle navigation device or an intelligent mobile phone through Bluetooth communication; a parking auxiliary position finding APP is arranged in the vehicle-mounted navigation equipment or the smart phone, the parking auxiliary position finding APP calls a third-party vehicle navigation APP, and the vehicle is guided to run to a parking space through images and voice;

the parking space state monitor 1 comprises a monitor outer shell 1.1, a monitor inner shell 1.2, a monitor lithium battery 1.3, a monitor PCB board combination 1.4, a solar battery 1.5 and glass 1.6; the monitor outer shell 1.1 and the monitor inner shell 1.2 are cylindrical, and the monitor inner shell 1.2 is fixedly arranged in the monitor outer shell 1.1 through threads; the monitor lithium battery 1.3 is fixedly arranged at the bottom of the cavity of the monitor inner shell 1.2; the monitor PCB combination 1.4 is fixedly arranged on the upper part of the monitor lithium battery 1.3; the solar cell 1.5 is fixedly arranged on the upper part of the monitor PCB board combination 1.4; the glass 1.6 is fixedly and hermetically arranged at the upper port of the monitor inner shell 1.2;

the monitor PCB combination 1.4 comprises a single chip microcomputer, a micro-power wireless communication module, a Beidou navigation module, a laser ranging module, a FLASH storage chip, a power supply conversion module and a working state indicator lamp; the power supply conversion module is electrically connected with the solar battery 1.5 and the monitor lithium battery 1.3, supplies power to the single chip microcomputer, the micro-power wireless communication module, the Beidou navigation module, the laser ranging module and the FLASH storage chip, and detects the voltage of the monitor lithium battery 1.3; the single chip microcomputer controls the micro-power wireless communication module, the Beidou navigation module and the laser ranging module to work coordinately; the Beidou navigation module receives a Beidou navigation satellite positioning signal and a time service signal, and the longitude and latitude coordinates of the positioning parking space state monitor 1 and a clock are synchronously calibrated; the micropower wireless communication module is in micropower wireless communication with the parking position finder 2 and provides parking position information for the parking position finder 2; the laser ranging module monitors the parking state above the parking space; the working state indicator lamp displays the working state of the parking space state monitor 1;

the parking position finder 2 comprises a position finder bottom shell 2.1, a position finder lithium battery 2.2, a position finder PCB assembly 2.3, a position finder upper cover 2.4 and a position finder sucker 2.5; the upper cover 2.4 of the position finder is fixedly arranged on the upper part of the bottom shell 2.1 of the position finder to form a closed cavity of the position finder; the position finder lithium battery 2.2 is arranged at the bottom of the closed cavity of the position finder, and the position finder PCB assembly 2.3 is arranged in the closed cavity of the position finder and positioned at the upper part of the position finder lithium battery 2.2; the upper part of the position finder upper cover 2.4 is provided with a position finding button 2.4.1, a position finding communication indicating lamp post 2.4.2 and a power state indicating lamp post 2.4.3, and the side edge of the position finder upper cover is provided with a USB charging port; a position finder sucker 2.5 is fixedly arranged at the lower part of the position finder bottom shell 2.1;

the locator PCB assembly 2.3 comprises a single chip microcomputer, a micropower wireless communication module, a Beidou navigation module, a Bluetooth communication module, a locator communication indicator lamp, a power state indicator lamp, a power conversion module and a locator lithium battery 2.2; the power supply conversion module is electrically connected with the USB charging port and the locator lithium battery 2.2, supplies power to the single chip microcomputer, the micro-power wireless communication module, the Beidou navigation module, the Bluetooth communication module and the FLASH storage chip, and detects the voltage of the locator lithium battery 2.2; the single chip microcomputer controls the micro-power wireless communication module, the Beidou navigation module and the Bluetooth communication module to work in a coordinated mode; the Beidou navigation module receives a Beidou navigation satellite positioning signal and a time service signal, and positions the longitude and latitude coordinates of the parking locator 2 and synchronously calibrates a clock; the micropower wireless communication module is in micropower wireless communication with the parking space state monitor 1 and provides parking position information for the parking position finder 2; the searching communication indicator lamp displays the communication state of the micropower wireless communication module; the power state indicator lamp displays the electric quantity storage state of the lithium battery 2.2 of the position finder.

An installation and operation method of a parking assistant locating system is specifically described as follows:

s1, a method for installing and adjusting the parking space state monitor 1 comprises the following steps: punching a hole in the middle of a parking space marked on the ground by using a puncher, and fixedly arranging the parking space state monitor 1 in the hole; the parking position finder 2 is used for awakening the parking position state monitor 1; the Beidou navigation module of the parking space state monitor 1 automatically searches for a Beidou navigation satellite, completes self longitude and latitude coordinate calibration and clock synchronization calibration, stores the calibrated longitude and latitude coordinates, and then closes the Beidou navigation module; the following parking space state monitor 1 automatically opens the Beidou navigation module at set time, and finishes self longitude and latitude coordinate calibration and clock synchronization calibration again; the parking space state monitor 1 automatically optimizes and updates the longitude and latitude coordinates, when the parking space state monitor 1 judges that the longitude and latitude coordinates are in the optimal state, the longitude and latitude coordinates are stopped to be updated, and the Beidou navigation module is automatically opened at set time to only carry out clock synchronization calibration.

S2, the installation method of the parking position finder 2 comprises the following steps: the parking position finder 2 is fixedly arranged at a proper position in the vehicle through a position finder sucker 2.5, the parking position finder 2 is connected with a power supply in the vehicle through a USB (universal serial bus) cable, and the parking position finder is connected with vehicle-mounted navigation equipment or a smart phone through Bluetooth; the parking position finder 2 automatically searches for the Beidou navigation satellite, dynamically updates the longitude and latitude coordinates of the parking position finder, and performs clock synchronization calibration at the whole point;

s31, the communication method between the parking space state monitor 1 and the parking position finder 2 is as follows: the parking space state monitor 1 and the parking position finder 2 are in wireless communication through micropower, the communication mode is periodic polling, namely a communication period T is set between the parking space state monitor 1 and the parking position finder 2, N communication time slots T are set in the communication period T, the first N communication time slots T are allocated to the parking position finder 2 to send a position finding signal, and the last (N-N) communication time slots T are allocated to the parking position state monitor 1 to send a parking space coordinate signal; the position searching signal sent by the parking position searching device 2 and the parking position coordinate signal sent by the parking position state monitor 1 both comprise a position searching signal time slot number, and the maximum number of the position searching signal time slots is n; the position searching signal also comprises longitude and latitude coordinate information of the parking position searching device 2, and the parking position coordinate signal also comprises longitude and latitude coordinate information of the parking position state monitor 1;

s32, a starting method of the parking position finder 2: when a parking space needs to be searched, a vehicle driver uses voice to interact with a vehicle-mounted navigator or a smart phone to start the parking position finder 2, and the parking space is searched;

s33, a communication time slot allocation method of the parking position finder 2 comprises the following steps: after the parking position finder 2 is started, the communication time slot is distributed in a random mode; before sending the locating signal, the parking locating device 2 firstly monitors whether a parking space coordinate signal sent by the parking space state monitor 1 or a locating signal sent by other parking locating devices 2 exists, if the parking space coordinate signal or the locating signal is monitored, the parking space coordinate signal or the locating signal time slot number n of the locating signal contained in the locating signal is analyzed_iThen divide by n_iRandomly generating a positive integer n between 1 and n_i' as the number of the seeking signal time slot of the parking position finder 2; in the present communication period or the next communication period T, in n_i' time slot transmission seeking signal, which includes the seeking signal time slot number n of the parking seeking device 2_i' and self longitude and latitude coordinate information; before the vehicle reaches the parking space and finishes parking, the parking position finder 2 carries out n in each subsequent communication period_iThe time slots all send the position searching signals until the vehicle finishes the position searching, and the parking position searching device 2 stops sending the position searching signals;

s34, responding to the condition of the parking space state monitor 1: in the working process of the parking space state monitor 1, the laser ranging module 1.4.1 monitors whether a vehicle is parked in a parking space in a set period; when the parking space state monitor 1 monitors that a vehicle is parked in a parking space, the parking space state monitor 1 is in a non-response state, the parking space state monitor 1 closes the micropower wireless communication module in the non-response state, and the singlechip is in a dormant state and does not respond to any position searching signal; the single chip microcomputer is awakened regularly, and whether a vehicle is parked in a parking space is monitored through the laser ranging module 1.4.1; when the parking space state monitor 1 monitors that the vehicle is not parked in the parking space, the parking space state monitor 1 is switched to a response state, the parking space state monitor 1 in the response state opens the micropower wireless communication module to respond to the position finding signal, and meanwhile, the laser ranging module 1.4.1 is used for monitoring whether the vehicle is parked in the parking space in a set period;

s35, the communication time slot allocation method of the parking space state monitor 1: the communication time slot allocation of the parking space state monitor 1 is carried out in a random mode; when the parking space state monitor 1 is in a response state, receiving a position searching signal sent by the parking position searching device 2, firstly analyzing a position searching signal time slot number and a longitude and latitude coordinate of the position searching signal, and calculating the distance between the position searching signal time slot number and the longitude and latitude coordinate of the parking space state monitor 1 according to the longitude and latitude coordinate of the position searching signal and the longitude and latitude coordinate of the parking space state monitor; if the distance between the two is calculated to be less than the set threshold value, a positive integer N between N and N is randomly generated_iThe time slot number of the parking space coordinate signal transmitted by the parking space state monitor 1 is N in the current communication period T or the next communication period T_iThe time slot number N of the position searching signal of the longitude and latitude coordinate signal and the original position searching signal of the parking space state monitor 1 is sent by the time slot_i(ii) a If the distance between the two is calculated to be larger than the set threshold value, the parking space state monitor 1 does not respond;

s36, a processing method for receiving a plurality of position searching signals by the parking space state monitor 1 includes: when the parking space state monitor 1 is in a response state and receives the position searching signals of the parking position searching devices 2 in a same signal period T, processing according to the received sequence; if any one of the received multiple position-finding signals calculates that the distance between the two signals is smaller than a set threshold value, a positive integer N between N and N is randomly generated_iThe time slot number of the parking space coordinate signal transmitted by the parking space state monitor 1 is N in the current communication period T or the next communication period T_iThe time slot sends the longitude and latitude coordinate signals of the parking space state monitor 1 and the received parking space stateThe time slot number of the position-searching signal is provided; if the distances between the plurality of position searching signals and the parking space state monitor 1 are calculated to be larger than the set threshold value, the parking space state monitor 1 does not respond;

s37, self-protection mechanism of the parking space state monitor 1: when the parking space state monitor 1 detects that the voltage of a lithium battery 1.3 of the built-in monitor is lower than a set threshold value, the single chip microcomputer automatically enters a dormant state; in a dormant state, the micro-power wireless communication module, the Beidou navigation module and the laser ranging module stop working; when the parking space state monitor 1 detects that the voltage of the lithium battery 1.3 of the built-in monitor returns to be above a set threshold value, the single chip microcomputer wakes up at regular time, whether a vehicle stops at a parking space is monitored through the laser ranging module 1.4.1, and the parking space automatically enters a non-response state or a corresponding state;

s4, parking position finding end flag: when the parking position finder 2 receives the parking position coordinate signal, the longitude and latitude coordinates of the parking position are analyzed, the distance between the two is calculated according to the longitude and latitude coordinates of the parking position state monitor 1, the distance between the two is smaller than a set threshold value and serves as a mark for finishing parking position finding, and at the moment, the parking position finder 2 stops sending position finding signals;

s5, method of guiding the vehicle by the parking space finder 2: after receiving the parking space coordinate signal, the parking position finder 2 analyzes the longitude and latitude coordinates of the parking space, and the parking position finder 2 guides the vehicle to drive to the parking space by voice; or the vehicle is guided to drive to the parking space through the navigation map and the voice through the vehicle-mounted navigator or the smart phone;

s6, a parking timing method: when the parking position searching is finished, the parking position searching device 2 stops sending the position searching signal, and meanwhile, the parking position searching device 2 or the vehicle-mounted navigator or the smart phone starts timing; when the longitude and latitude coordinates of the parking position finder 2 are changed and the distance between the longitude and latitude coordinates of the parking position finder 2 and the longitude and latitude coordinates of the original parking position state monitor 1 is larger than a set value, the parking position finder 2 or the vehicle-mounted navigator or the smart phone finishes timing; the parking time is uploaded to a remote monitoring center through the smart phone, and the parking cost is deducted from the smart phone.

Example two:

the parking position finder 2 is connected with vehicle-mounted navigation equipment or a smart phone through Bluetooth communication, the parking position finder 2 transmits the obtained parking position information to a vehicle navigation APP arranged in the vehicle-mounted navigation equipment or the smart phone, and the vehicle is guided to run to a parking space through images and voice;

s1, a method for installing and adjusting the parking space state monitor 1 comprises the following steps: punching a hole in the middle of a parking space marked on the ground by using a puncher, and fixedly arranging the parking space state monitor 1 in the hole; the parking position finder 2 is used for awakening the parking position state monitor 1; the Beidou navigation module of the parking space state monitor 1 automatically searches for a Beidou navigation satellite, completes self longitude and latitude coordinate calibration and clock synchronization calibration, stores the calibrated longitude and latitude coordinates, and then closes the Beidou navigation module; the following parking space state monitor 1 automatically opens the Beidou navigation module at set time, and finishes self longitude and latitude coordinate calibration and clock synchronization calibration again; the parking space state monitor 1 automatically optimizes and updates the longitude and latitude coordinates of the parking space state monitor 1, when the parking space state monitor 1 judges that the longitude and latitude coordinates of the parking space state monitor 1 are in an optimal state, the longitude and latitude coordinates of the parking space state monitor 1 are stopped to be updated, and the Beidou navigation module is automatically opened at set time to only carry out clock synchronization calibration;

s31, the communication method between the parking space state monitor 1 and the parking position finder 2 is as follows: the parking space state monitor 1 and the parking position finder 2 are in wireless communication through micropower, the communication mode is periodic polling, namely a communication period T is set between the parking space state monitor 1 and the parking position finder 2, and M communication sub-periods T are arranged in the communication period T according to the communication distanceⁱCommunication sub-period TⁱThe length of the parking space is in direct proportion to the area of a circle corresponding to the distance between the parking space state monitor (1) and the parking position finder (2); each communication sub-period TⁱIs internally provided with MⁱOne communication time slot t, first mⁱA communication time slot t is distributed to the parking position finder (2) to send a position finding signal, then (M)ⁱ-mⁱ) The state of a communication time slot t allocated to a parking spaceThe state monitor (1) sends a parking space coordinate signal; each communication sub-period TⁱThe number of the communication time slots T in the system is different, the number of the communication time slots T is in direct proportion to the area of a circle corresponding to the distance between the parking space state monitor (1) and the parking position finder (2), and the subsequent communication sub-period T isⁱThe number of internal communication time slots T is greater than the previous communication sub-period TⁱThe number of intra-communication time slots t;

m communication sub-periods T in the same communication period TⁱFront m ofⁱEach communication time slot t can be randomly allocated to the parking position finder (2) to send a position finding signal; m communication sub-periods T in the same communication period TⁱAfter (M)ⁱ-mⁱ) The communication time slot T is in the corresponding communication sub-period T according to the distance between the parking space state monitor (1) and the parking position finder (2)ⁱThe parking space state monitor (1) is randomly allocated to send parking space coordinate signals;

the position searching signal sent by the parking position finder 2 and the parking position coordinate signal sent by the parking position state monitor 1 both comprise a position searching signal time slot number, the position searching signal also comprises longitude and latitude coordinate information of the parking position finder 2, and the parking position coordinate signal also comprises longitude and latitude coordinate information of the parking position state monitor 1;

s33, a communication time slot allocation method of the parking position finder 2 comprises the following steps: after the parking position finder 2 is started, the communication time slot is distributed in a random mode; before sending the locating signal, the parking locating device 2 firstly monitors whether a parking space coordinate signal sent by the parking space state monitor 1 or a locating signal sent by other parking locating devices 2 exists, if the parking space coordinate signal or the locating signal is monitored, the parking space coordinate signal or the locating signal time slot number n of the locating signal contained in the locating signal is analyzed_iThen divide by n_iRandomly generating a positive integer n between 1 and n_i' as the number of the seeking signal time slot of the parking position finder 2; in the present communication period or the next communication period T, in n_i' time slot transmitting seeking signal, seekingThe bit signal includes the time slot number n of the position-finding signal of the parking position-finder 2_i' and self longitude and latitude coordinate information; before the vehicle reaches the parking space and finishes parking, the parking position finder 2 carries out n in each subsequent communication period_iThe time slots all send the position searching signals until the vehicle finishes the position searching, and the parking position searching device 2 stops sending the position searching signals;

s35, the communication time slot allocation method of the parking space state monitor 1: the communication time slot allocation of the parking space state monitor 1 is carried out in a random mode; when the parking space state monitor 1 is in a response state, receiving a position searching signal sent by the parking position searching device 2, firstly analyzing a position searching signal time slot number and a longitude and latitude coordinate of the position searching signal, and calculating the distance between the position searching signal time slot number and the longitude and latitude coordinate of the parking space state monitor 1 according to the longitude and latitude coordinate of the position searching signal and the longitude and latitude coordinate of the parking space state monitor; if the distance between the two is calculated to be less than the set threshold value, a positive integer N between N and N is randomly generated_iThe time slot number of the parking space coordinate signal transmitted by the parking space state monitor 1 is N in the current communication period T or the next communication period T_iThe time slot number N of the position searching signal of the longitude and latitude coordinate signal and the original position searching signal of the parking space state monitor 1 is sent by the time slot_i(ii) a If the distance between the parking space and the parking space is calculated to be larger than a set threshold value, the parking space state monitorDetector 1 does not respond;

s36, a processing method for receiving a plurality of position searching signals by the parking space state monitor 1 includes: when the parking space state monitor 1 is in a response state and receives the position searching signals of the parking position searching devices 2 in a same signal period T, processing according to the received sequence; if any one of the received multiple position-finding signals calculates that the distance between the two signals is smaller than a set threshold value, a positive integer N between N and N is randomly generated_iThe time slot number of the parking space coordinate signal transmitted by the parking space state monitor 1 is N in the current communication period T or the next communication period T_iThe time slot sends the longitude and latitude coordinate signals of the parking space state monitor 1 and the time slot numbers of the locating signals of all the received locating signals; if the distances between the plurality of position searching signals and the parking space state monitor 1 are calculated to be larger than the set threshold value, the parking space state monitor 1 does not respond;

The present invention is not described in detail in the prior art.

Claims

1. An installation and operation method of a parking-assistant locating system, wherein the parking-assistant locating system comprises: the parking space monitoring system comprises a parking space state monitor (1) and a parking position finder (2), wherein the parking space state monitor (1) is fixedly embedded in the ground of a parking space, and the parking position finder (2) is arranged in a vehicle; all be provided with big dipper navigation module and micropower wireless communication module in parking stall state monitor (1), the ware (2) is sought in the parking, and parking stall state monitor (1), the ware (2) is sought in the parking through big dipper navigation module location self longitude and latitude coordinate and keep the clock synchronous, seeks a communication, characterized by through micropower wireless communication module:

s1, a method for installing and adjusting the parking space state monitor (1): punching a hole in the middle of a parking space marked on the ground by using a puncher, and fixedly arranging a parking space state monitor (1) in the hole; a parking position finder (2) is used for waking up the parking position state monitor (1); the Beidou navigation module of the parking space state monitor (1) automatically searches for a Beidou navigation satellite, completes self longitude and latitude coordinate calibration and clock synchronization calibration, stores the calibrated longitude and latitude coordinates, and then closes the Beidou navigation module; the following parking space state monitor (1) automatically opens the Beidou navigation module at set time, and finishes self longitude and latitude coordinate calibration and clock synchronization calibration again; the parking space state monitor (1) automatically optimizes and updates the longitude and latitude coordinates of the parking space state monitor, when the parking space state monitor (1) judges that the longitude and latitude coordinates of the parking space state monitor are in an optimal state, the updating of the longitude and latitude coordinates of the parking space state monitor is stopped, and the Beidou navigation module is automatically opened at set time to only carry out clock synchronization calibration;

s2, a mounting method of the parking position finder (2): the parking position finder (2) is fixedly arranged at a proper position in the vehicle through a position finder sucker (2.5), the parking position finder (2) is connected with a power supply in the vehicle through a USB (universal serial bus) line, and the parking position finder is connected with vehicle-mounted navigation equipment or a smart phone through Bluetooth; the parking position finder (2) automatically searches for a Beidou navigation satellite, dynamically updates the longitude and latitude coordinates of the Beidou navigation satellite, and performs clock synchronization calibration at the whole point;

s31, a communication method between the parking space state monitor (1) and the parking position finder (2) is as follows: the parking space state monitor (1) and the parking position finder (2) are wirelessly communicated through micropower, the communication mode is periodic polling, namely a communication period T is set between the parking space state monitor (1) and the parking position finder (2), N communication time slots T are set in the communication period T, the first N communication time slots T are allocated to the parking position finder (2) to send a position finding signal, and the last (N-N) communication time slots T are allocated to the parking position state monitor (1) to send a parking space coordinate signal; the position searching signal sent by the parking position searching device (2) and the parking position coordinate signal sent by the parking position state monitor (1) both comprise a position searching signal time slot number, and the maximum number of the position searching signal time slot number is n; the position searching signal also comprises longitude and latitude coordinate information of the parking position searching device (2), and the parking position coordinate signal also comprises longitude and latitude coordinate information of the parking position state monitor (1);

s32, a starting method of the parking position finder (2): when a parking space needs to be searched, a vehicle driver presses a position searching button (2.4.1) of the parking position finder (2), or the parking position finder (2) is started by voice and a vehicle-mounted navigator or a smart phone in an interactive mode, and the parking position is searched;

s33, a communication time slot allocation method of the parking position finder (2): after the parking position finder (2) is started, the allocation of the communication time slot is carried out in a random mode; before sending a locating signal, the parking locating device (2) firstly monitors whether a parking space coordinate signal sent by the parking space state monitor (1) or a locating signal sent by other parking locating devices (2) exists, if the parking space coordinate signal or the locating signal is monitored, the parking space coordinate signal or the locating signal containing a locating signal time slot number n is analyzed_iThen divide by n_iRandomly generating a positive integer n between 1 and n_i' as the time slot number of the locating signal of the parking locator (2); in the present communication period or the next communication period T, in n_i' time slot transmission of a locating signal containing the time slot number n of the locating signal of the parking locator (2)_i' and self longitude and latitude coordinate information; before the vehicle reaches the parking space and finishes parking, the parking position finder (2) searches n in each subsequent communication period_iThe time slots all send the position searching signals until the vehicle finishes the position searching, and the parking position searching device (2) stops sending the position searching signals;

s34, responding conditions of the parking space state monitor (1): in the working process of the parking space state monitor (1), a laser ranging module (1.4.1) monitors whether a vehicle is parked in a parking space or not in a set period; when the parking space state monitor (1) monitors that a vehicle is parked in a parking space, the parking space state monitor (1) is in a non-response state, the parking space state monitor (1) closes the micropower wireless communication module in the non-response state, the single chip microcomputer is in a dormant state, and no response is given to any position searching signal; the single chip microcomputer is awakened regularly, and whether a vehicle is parked in a parking space is monitored through the laser ranging module (1.4.1); when the parking space state monitor (1) monitors that the vehicle is not parked in the parking space, the parking space state monitor (1) is switched to a response state, the parking space state monitor (1) in the response state opens the micropower wireless communication module to respond to the position finding signal, and meanwhile, the laser ranging module (1.4.1) is used for continuously monitoring whether the vehicle is parked in the parking space in a set period;

s35, a communication time slot allocation method of the parking space state monitor (1): the allocation of the communication time slot of the parking space state monitor (1) is carried out in a random mode; when the parking space state monitor (1) is in a response state, receiving a position searching signal sent by the parking position searching device (2), firstly analyzing a position searching signal time slot number and a longitude and latitude coordinate of the position searching signal, and calculating the distance between the position searching signal and the parking space state monitor (1) according to the longitude and latitude coordinate of the position searching signal and the longitude and latitude coordinate of the parking space state monitor (1); if the distance between the two is calculated to be less than the set threshold value, a positive integer N between N and N is randomly generated_iAs the parking space state monitor (1)Sending the time slot number of the parking space coordinate signal in the communication period T or N of the next communication period T_iThe time slot sends the longitude and latitude coordinate signal of the parking space state monitor (1) and the time slot number n of the position searching signal of the original position searching signal_i' and time slot number N of the parking space state monitor (1)_i(ii) a If the distance between the parking space state monitor and the parking space state monitor is calculated to be larger than a set threshold value, the parking space state monitor (1) does not respond;

s36, a processing method for receiving a plurality of position searching signals by the parking space state monitor (1) comprises the following steps: when the parking space state monitor (1) is in a response state and receives the position searching signals of the parking position searching devices (2) in a same signal period T, processing according to the received sequence; if any one of the received multiple position-finding signals calculates that the distance between the two signals is smaller than a set threshold value, a positive integer N between N and N is randomly generated_iThe time slot number of the parking space coordinate signal sent by the parking space state monitor (1) is N in the current communication period T or the next communication period T_iThe time slot sends the longitude and latitude coordinate signals of the parking space state monitor (1) and the time slot numbers of the locating signals of all the received locating signals; if the distances between the plurality of position searching signals and the parking space state monitor (1) are calculated to be larger than a set threshold value, the parking space state monitor (1) does not respond;

s37, a self-protection mechanism of the parking space state monitor (1): when the parking space state monitor (1) detects that the voltage of a lithium battery (1.3) of the built-in monitor is lower than a set threshold value, the single chip microcomputer automatically enters a dormant state; in a dormant state, the micro-power wireless communication module, the Beidou navigation module and the laser ranging module stop working; when the parking space state monitor (1) detects that the voltage of a lithium battery (1.3) of the built-in monitor returns to be above a set threshold value, the single chip microcomputer wakes up at regular time, whether a vehicle is parked in a parking space is monitored through the laser ranging module (1.4.1), and the parking space state automatically enters a non-response state or a corresponding state;

s4, parking position finding end flag: when the parking position finder (2) receives the parking position coordinate signal, resolving the longitude and latitude coordinates of the parking position, calculating the distance between the two according to the longitude and latitude coordinates of the parking position state monitor (1), and taking the distance between the two as a mark for finishing parking position finding when the distance between the two is smaller than a set threshold value, wherein the parking position finder (2) stops sending a position finding signal;

s5, a method for guiding a vehicle by a parking position finder (2): after receiving the parking space coordinate signal, the parking position finder (2) analyzes the longitude and latitude coordinates of the parking space, and the parking position finder (2) guides the vehicle to drive to the parking space by voice; or the vehicle is guided to drive to the parking space through a navigation map and voice through a vehicle-mounted navigator or a smart phone;

s6, a parking timing method: when the parking position searching is finished, the parking position searching device (2) stops sending the position searching signal, and meanwhile, the parking position searching device (2) or the vehicle-mounted navigator or the smart phone starts timing; when the longitude and latitude coordinates of the parking position finder (2) change and the distance between the longitude and latitude coordinates of the parking position finder and the longitude and latitude coordinates of the original parking position state monitor (1) is larger than a set value, the parking position finder (2) or the vehicle-mounted navigator or the smart phone finishes timing; the parking time is uploaded to a remote monitoring center through the smart phone, and the parking cost is deducted from the smart phone.

2. The installation and operation method of the parking assistant locating system according to claim 1, wherein: be provided with loudspeaker in the ware (2) are sought to the parking, and the ware (2) are sought to the parking is gone to the parking stall through pronunciation guide vehicle.

3. The installation and operation method of the parking assistant locating system according to claim 1, wherein: the parking position finder (2) is connected with an on-vehicle navigation device or an intelligent mobile phone through Bluetooth communication; the built-in parking of on-vehicle navigation equipment or smart mobile phone is assisted and is sought a APP, and the auxiliary APP that seeks of parking calls third party driving navigation APP, through image, pronunciation guide vehicle travel to the parking stall.

4. The installation and operation method of the parking assistant locating system according to claim 1, wherein: the parking position finder (2) is connected with an on-vehicle navigation device or a smart phone through Bluetooth communication, the parking position finder (2) transmits the obtained parking position information to an on-vehicle navigation device or a built-in driving navigation APP of the smart phone, and the vehicle is guided to run to a parking space through images and voice.

5. The installation and operation method of the parking assistant locating system according to claim 1, wherein: the parking space state monitor (1) comprises a monitor outer shell (1.1), a monitor inner shell (1.2), a monitor lithium battery (1.3), a monitor PCB combination (1.4), a solar battery (1.5) and glass (1.6); the monitor outer shell (1.1) and the monitor inner shell (1.2) are cylindrical, and the monitor inner shell (1.2) is fixedly arranged in the monitor outer shell (1.1) through threads; the monitor lithium battery (1.3) is fixedly arranged at the bottom of the cavity of the monitor inner shell (1.2); the monitor PCB board combination (1.4) is fixedly arranged on the upper part of the monitor lithium battery (1.3); the solar cell (1.5) is fixedly arranged on the upper part of the monitor PCB assembly (1.4); the glass (1.6) is fixedly and hermetically arranged at the upper port of the monitor inner shell (1.2).

6. The installation and operation method of the parking assistant locating system according to claim 5, wherein: the monitor PCB assembly (1.4) comprises a single chip microcomputer, a micro-power wireless communication module, a Beidou navigation module, a laser ranging module, a FLASH storage chip, a power supply conversion module and a working state indicator lamp; the power supply conversion module is electrically connected with the solar battery (1.5) and the monitor lithium battery (1.3), supplies power to the single chip microcomputer, the micro-power wireless communication module, the Beidou navigation module, the laser ranging module and the FLASH storage chip, and detects the voltage of the monitor lithium battery (1.3); the single chip microcomputer controls the micro-power wireless communication module, the Beidou navigation module and the laser ranging module to work coordinately; the Beidou navigation module receives a Beidou navigation satellite positioning signal and a time service signal, and the longitude and latitude coordinates of the positioning parking space state monitor (1) are calibrated synchronously with a clock; the micropower wireless communication module is in micropower wireless communication with the parking position finder (2) and provides parking position information for the parking position finder (2); the laser ranging module monitors the parking state above the parking space; the working state indicator light displays the working state of the parking space state monitor (1).

7. The installation and operation method of the parking assistant locating system according to claim 1, wherein: the parking position finder (2) comprises a position finder bottom shell (2.1), a position finder lithium battery (2.2), a position finder PCB combination (2.3), a position finder upper cover (2.4) and a position finder sucker (2.5); the upper cover (2.4) of the position finder is fixedly arranged on the upper part of the bottom shell (2.1) of the position finder to form a closed cavity of the position finder; the position finder lithium battery (2.2) is arranged at the bottom of the closed cavity of the position finder, and the position finder PCB assembly (2.3) is arranged in the closed cavity of the position finder and is positioned at the upper part of the position finder lithium battery (2.2); the upper part of the position finder upper cover (2.4) is provided with a position finding button (2.4.1), a position finding communication indicating lamp post (2.4.2) and a power state indicating lamp post (2.4.3), and the side edge of the position finder upper cover is provided with a USB charging port; a position finder sucker (2.5) is fixedly arranged at the lower part of the position finder bottom shell (2.1).

8. The installation and operation method of the parking assistant locating system according to claim 7, wherein: the locator PCB assembly (2.3) comprises a single chip microcomputer, a micro-power wireless communication module, a Beidou navigation module, a Bluetooth communication module, a locator communication indicator lamp, a power state indicator lamp, a power conversion module and a locator lithium battery (2.2); the power supply conversion module is electrically connected with the USB charging port and the locator lithium battery (2.2), supplies power to the single chip microcomputer, the micro-power wireless communication module, the Beidou navigation module, the Bluetooth communication module and the FLASH storage chip, and detects the voltage of the locator lithium battery (2.2); the single chip microcomputer controls the micro-power wireless communication module, the Beidou navigation module and the Bluetooth communication module to work in a coordinated mode; the Beidou navigation module receives a Beidou navigation satellite positioning signal and a time service signal, and the longitude and latitude coordinates of the positioning parking position finder (2) and a clock are synchronously calibrated; the micropower wireless communication module is in micropower wireless communication with the parking space state monitor (1) and provides parking position information for the parking position finder (2); the searching communication indicator lamp displays the communication state of the micropower wireless communication module; the power state indicator lamp displays the electric quantity storage state of the lithium battery (2.2) of the position finder.

9. The installation and operation method of the parking assistant locating system according to claim 1, wherein: m communication sub-periods T are arranged in the communication period T according to the communication distanceⁱEach communication sub-period TⁱIs internally provided with MⁱOne communication time slot t, first mⁱA communication time slot t is distributed to the parking position finder (2) to send a position finding signal, then (M)ⁱ-mⁱ) Each communication time slot t is allocated to the parking space state monitor (1) to send a parking space coordinate signal; each communication sub-period TⁱThe number of the communication time slots T in the system is different, the number of the communication time slots T is in direct proportion to the area of a circle corresponding to the distance between the parking space state monitor (1) and the parking position finder (2), and the subsequent communication sub-period T isⁱThe number of internal communication time slots T is greater than the previous communication sub-period TⁱThe number of intra-communication time slots t;

m communication sub-periods T in the same communication period TⁱFront m ofⁱEach communication time slot t can be randomly allocated to the parking position finder (2) to send a position finding signal; m communication sub-periods T in the same communication period TⁱAfter (M)ⁱ-mⁱ) The communication time slot T is in the corresponding communication sub-period T according to the distance between the parking space state monitor (1) and the parking position finder (2)ⁱThe parking space state monitor (1) is randomly allocated to send parking space coordinate signals.