CN106899896B - Bridge connection A-GPS interphone application system and application method thereof - Google Patents
Bridge connection A-GPS interphone application system and application method thereof Download PDFInfo
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- CN106899896B CN106899896B CN201710076959.7A CN201710076959A CN106899896B CN 106899896 B CN106899896 B CN 106899896B CN 201710076959 A CN201710076959 A CN 201710076959A CN 106899896 B CN106899896 B CN 106899896B
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- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04Q—SELECTING
- H04Q5/00—Selecting arrangements wherein two or more subscriber stations are connected by the same line to the exchange
- H04Q5/24—Selecting arrangements wherein two or more subscriber stations are connected by the same line to the exchange for two-party-line systems
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- G—PHYSICS
- G01—MEASURING; TESTING
- G01S—RADIO DIRECTION-FINDING; RADIO NAVIGATION; DETERMINING DISTANCE OR VELOCITY BY USE OF RADIO WAVES; LOCATING OR PRESENCE-DETECTING BY USE OF THE REFLECTION OR RERADIATION OF RADIO WAVES; ANALOGOUS ARRANGEMENTS USING OTHER WAVES
- G01S19/00—Satellite radio beacon positioning systems; Determining position, velocity or attitude using signals transmitted by such systems
- G01S19/01—Satellite radio beacon positioning systems transmitting time-stamped messages, e.g. GPS [Global Positioning System], GLONASS [Global Orbiting Navigation Satellite System] or GALILEO
- G01S19/03—Cooperating elements; Interaction or communication between different cooperating elements or between cooperating elements and receivers
- G01S19/10—Cooperating elements; Interaction or communication between different cooperating elements or between cooperating elements and receivers providing dedicated supplementary positioning signals
- G01S19/12—Cooperating elements; Interaction or communication between different cooperating elements or between cooperating elements and receivers providing dedicated supplementary positioning signals wherein the cooperating elements are telecommunication base stations
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- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04B—TRANSMISSION
- H04B17/00—Monitoring; Testing
- H04B17/30—Monitoring; Testing of propagation channels
- H04B17/309—Measuring or estimating channel quality parameters
- H04B17/318—Received signal strength
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- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04W—WIRELESS COMMUNICATION NETWORKS
- H04W4/00—Services specially adapted for wireless communication networks; Facilities therefor
- H04W4/80—Services using short range communication, e.g. near-field communication [NFC], radio-frequency identification [RFID] or low energy communication
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- Signal Processing (AREA)
- Radar, Positioning & Navigation (AREA)
- Remote Sensing (AREA)
- Quality & Reliability (AREA)
- Electromagnetism (AREA)
- General Physics & Mathematics (AREA)
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- Mobile Radio Communication Systems (AREA)
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Abstract
The invention discloses a bridge connection A-GPS interphone application system and an application method thereof, and the key points of the technical scheme are as follows: the second Bluetooth module is used for establishing connection with the first Bluetooth module to receive Bluetooth signals, and a Bluetooth serial-to-serial port receiver is connected to the output end of the second Bluetooth module; the intercepting unit is used for intercepting and detecting whether the second Bluetooth module is connected with the first Bluetooth module so as to output an intercepting signal; the switch is provided with a control end and a contact end, the contact end comprises an input end, a first output end and a second output end, the first output end of the switch is connected with the output end of the Bluetooth serial-to-serial-port receiver, the second output end of the switch is connected with the output end of the GPS positioning module, and the control end responds to the intercepted signal to control the action of the contact end; and the input end of the microcontroller is connected with the input end of the contact end in the change-over switch, and the microcontroller transmits the current position information of the user terminal to the management terminal through the communication module according to the action of the change-over switch.
Description
Technical Field
The invention relates to a bridge connection A-GPS interphone application system and an application method thereof.
Background
The interphone is a two-way mobile communication tool, can be used for communication without any network support, has no telephone charge, and is suitable for occasions with relatively fixed and frequent communication.
The GPS handheld interphone has the advantages that the GPS receiver is nested into the interphone, so that the global positioning, the position storage, the track storage and the like of the interphone position are realized, and the outdoor positioning and navigation requirements are met.
The appearance of the public network interphone can send the voice data to the server through the operator network, and the server forwards the voice data to the interphone matched with the server through the operator network, so that the national intercommunication is realized, and the limitation on the transmission distance of the interphone is broken; therefore, in order to better satisfy the use of customers, a GPS type public network interphone is presented in the prior art to face a wider customer group.
When the GPS type public network interphone is applied to outdoor travel or work and walk of management staff, due to the characteristics of the GPS positioning module, the positioning effect of the GPS type public network interphone is seen on the feedback result of a user, particularly under the conditions that the weather is poor and the user environment is high-rise, the positioning effect is not ideal enough, the user with the GPS public network interphone cannot be accurately positioned, and therefore certain improvement is achieved.
Disclosure of Invention
Aiming at the defects in the prior art, the invention aims to provide a bridge connection A-GPS interphone application system which has the characteristic of improving the positioning effect of the interphone.
The technical purpose of the invention is realized by the following technical scheme:
a bridge A-GPS interphone application system comprises an interphone carrying a GPS positioning module, the GPS positioning module is used for obtaining the current position information of the interphone, the system also comprises a user terminal carrying the A-GPS positioning module and a user system carried on the user terminal, and the user system comprises:
the device comprises an acquisition unit, a processing unit and a processing unit, wherein the acquisition unit is used for acquiring the current position information of a user terminal;
the control unit is connected with the acquisition unit and used for converting the current position information of the user terminal into a Bluetooth signal to be sent through the first Bluetooth module;
the intercom still includes:
the second Bluetooth module is used for establishing connection with the first Bluetooth module to receive Bluetooth signals, and a Bluetooth serial-to-serial port receiver is connected to the output end of the second Bluetooth module;
the intercepting unit is used for intercepting and detecting whether the second Bluetooth module is connected with the first Bluetooth module so as to output an intercepting signal;
the switch is provided with a control end and a contact end, the contact end comprises an input end, a first output end and a second output end, the first output end of the switch is connected with the output end of the Bluetooth serial-to-serial-port receiver, the second output end of the switch is connected with the output end of the GPS positioning module, and the control end responds to the intercepted signal to control the action of the contact end;
and the input end of the microcontroller is connected with the input end of the contact end in the change-over switch, and the microcontroller transmits the current position information of the user terminal to the management terminal through the communication module according to the action of the change-over switch.
Preferably, the microcontroller is connected with the input end of the contact terminal in the change-over switch through a USART serial port.
Preferably, the user system further comprises a link monitoring unit, a generating unit and a map display unit;
the map display unit comprises an electronic map displayed on a display screen of the user terminal and displays the current position information of the user terminal on the electronic map;
the link monitoring unit is used for monitoring the RF signal intensity between the first Bluetooth module and the second Bluetooth module and outputting a trigger signal when the RF signal intensity between the first Bluetooth module and the second Bluetooth module is smaller than a first preset value;
and the generating unit responds to the trigger signal and marks the current position information of the user terminal in the electronic map periodically.
Preferably, the link monitoring unit is further configured to control the user terminal to send an alert when the RF signal strength between the first bluetooth module and the second bluetooth module is smaller than a second preset value.
Preferably, the user terminal warns through a vibrator or a ring tone carried by the user terminal.
Preferably, the time for the generation unit to periodically generate the mark is 0.5m or 1 m.
In view of the defects in the prior art, another object of the present invention is to provide an application method of a bridge-connected a-GPS interphone, which has the characteristic of improving the positioning effect of the interphone.
The technical purpose of the invention is realized by the following technical scheme:
a bridge connection A-GPS interphone application method includes the following steps:
acquiring current position information of a user terminal;
establishing connection with a Bluetooth module II in the interphone through a Bluetooth module I in the user terminal;
the interphone acquires the current position information of the user terminal so as to transmit the current position information acquired by the user terminal to the management terminal instead of the current position information acquired by the interphone.
Preferably, the method further comprises the following steps:
monitoring the RF signal intensity between the first Bluetooth module and the second Bluetooth module;
when the intensity of the RF signal is smaller than a first preset value, periodically marking the current position information of the user terminal in an electronic map;
and when the RF signal intensity is smaller than the second preset value, controlling the user terminal to send out an alarm.
In summary, compared with the prior art, the beneficial effects of the invention are as follows:
the method comprises the steps that a Bluetooth module II is added on the interphone by means of a positioning module of a user terminal A-GPS, and the positioning data acquired by the user terminal is sent to the interphone by establishing connection between the Bluetooth module I and the Bluetooth module II so as to replace the traditional GPS positioning module of the interphone, so that the positioning effect of the interphone is improved, and the problem that the positioning accuracy of the interphone is low due to the fact that the GPS positioning module is influenced by weather is avoided; and the mode of installing an A-GPS positioning module in the interphone is abandoned, so that the manufacturing cost of the interphone is effectively reduced.
Drawings
FIG. 1 is a block diagram of a system according to a first embodiment;
FIG. 2 is a block diagram of a system according to a second embodiment;
fig. 3 is a schematic flow chart of the third embodiment.
Detailed Description
The present invention will be described in further detail with reference to the accompanying drawings.
The first embodiment is as follows:
as shown in fig. 1, a bridge-connected a-GPS interphone application system includes an interphone, where the interphone carries a GPS positioning module, and the GPS positioning module can acquire current position information of the interphone; in this embodiment, the interphones adopt public network interphones, and the public network interphones usually adopt a plurality of interphones as a group, and when one of the interphones speaks, the voice information of the conversation can be transmitted to the server through the operator network, and the server issues the information to each interphones of the group, so as to implement the conversation in the whole network and nationwide range.
The interphone in the embodiment carries the GPS positioning module, the GPS positioning module can send the current position information of the interphone to the server through communication module after acquiring the current position information of the interphone, and the server transmits the current position information of the interphone to the management terminal; the interphone in one clan is provided with the GPS positioning module, so that the management terminal can obtain the current position information of each interphone, effective management control is formed, and the working state of a corresponding interphone worker is known.
The bridge connection A-GPS interphone application system further comprises a user terminal, wherein the user terminal adopts a smart phone, and the smart phone in the embodiment carries an A-GPS positioning module.
A-GPS is assisted GPS technology, and can improve the performance of GPS (satellite positioning system). a-GPS positioning module compares to GPS positioning module, it is worth mentioning that GPS is positioning by radio signals from satellites, which may be attenuated by irregular buildings, walls or trees in bad weather or in a city. Under such conditions, a non-a-GPS device may not be able to perform fast positioning, and a user terminal carrying an a-GPS positioning module may perform fast positioning through an operator base station.
The user terminal is provided with a user system which is nested and loaded on the user terminal, the user system is application software in the user terminal, and the user system comprises an acquisition unit, a control unit and a first Bluetooth module.
The acquisition unit is based on an A-GPS positioning module of the user terminal and is used for acquiring the current position information of the user terminal.
The control unit is connected with the acquisition unit and used for acquiring the current position information of the user terminal, and converting the positioning data of the current position information of the user terminal into a Bluetooth signal and transmitting the Bluetooth signal to the first Bluetooth module so as to send the Bluetooth signal through the first Bluetooth module.
The interphone in the embodiment further comprises a second Bluetooth module, a Bluetooth-to-serial port receiver, an intercepting unit, a selector switch and a microcontroller.
And the user terminal opens the first Bluetooth module in the user system and searches a second Bluetooth module of the interphone, and the second Bluetooth module is connected with the first Bluetooth module to receive a Bluetooth signal sent by the user terminal. It is worth explaining that the bluetooth signal received by the second bluetooth module is not directly recognized by the microcontroller, so that the output end of the second bluetooth module is connected with a bluetooth serial-to-serial port receiver. The Bluetooth serial-to-serial port receiver is used for converting a Bluetooth signal sent by the user terminal into positioning data which can be identified by the microcontroller.
The intercepting unit is composed of active and passive devices and circuits and is used for intercepting and detecting whether the Bluetooth module II is connected with the Bluetooth module I so as to correspondingly output an intercepting signal, namely when the intercepting unit detects that the Bluetooth module II receives the Bluetooth signal, the intercepting unit outputs a high-level intercepting signal to the selector switch; otherwise, the interception unit outputs an interception signal of a low level to the switch.
The transfer switch is provided with a control end and a contact end, the contact end comprises an input end, a first output end and a second output end, the input end of the contact end is connected with the input end of the microcontroller, the first output end of the contact end is connected with the output end of the Bluetooth transfer serial port receiver, the second output end of the contact end is connected with the output end of the GPS positioning module, and when the control end receives a high-level interception signal output by the interception unit, the control end controls the action of the contact end to jump the second output end of the contact end to the first output end so as to send positioning data output by the Bluetooth transfer serial port receiver into the microcontroller; on the contrary, when the control end receives the low-level interception signal output by the interception unit, the contact end is kept on the second output end so as to send the positioning data sent by the GPS positioning module to the microcontroller.
Wherein, microcontroller links to each other through the input of USART serial ports and the switch-over switch contact end, and microcontroller is used for handling the location data of GPS orientation module output or the location data of bluetooth commentaries on classics serial ports receiver output.
The microcontroller sends positioning data through the communication module according to the action of the selector switch, when the GPS positioning module is not positioned accurately due to the fact that the GPS positioning module is greatly influenced by weather, a user is connected with the Bluetooth module I through the Bluetooth module I, the selector switch enables a loop between the GPS positioning module and the microcontroller to be in jumping connection with a loop between the Bluetooth serial-to-serial-port receiver and the microcontroller, so that the user terminal can provide positioning data of the A-GPS positioning module with high positioning precision into the microcontroller, the microcontroller transmits the current position information of the user terminal into the server through an operator network, and the server transmits the current position information into the management terminal, and the purpose of improving the positioning precision of the interphone is achieved; it is worth to be noted that, when the bluetooth module two in the interphone is connected with the bluetooth module one in the user terminal, the GPS positioning module of the interphone does not send positioning data to the microcontroller, but does not affect the use of the voice dialogue system of the interphone.
Example two:
as shown in fig. 1 and 2, the user system further includes a link monitoring unit, a generating unit, and a map display unit.
The map display unit comprises an electronic map displayed on a display screen of the user terminal, the electronic map is an electronic map of a street and a town where the user terminal is located, and after the acquisition unit acquires the current position information of the user terminal, the position information can be displayed on the electronic map.
The link monitoring unit is used for monitoring the RF signal intensity between the first Bluetooth module and the second Bluetooth module and correspondingly outputting a trigger signal when the RF signal intensity between the first Bluetooth module and the second Bluetooth module is smaller than a first preset value. The RF signal intensity between the first Bluetooth module and the second Bluetooth module can be converted into the distance between the first Bluetooth module and the second Bluetooth module, and the longer the distance between the first Bluetooth module and the second Bluetooth module is, the weaker the RF signal intensity between the first Bluetooth module and the second Bluetooth module is. In this embodiment, the RF signal strength corresponding to the first preset value is converted into a distance between the first bluetooth module and the second bluetooth module, which is between 1m and 2 m. It should be noted that the link monitoring unit is only activated after the connection between the first bluetooth module and the second bluetooth module is established, so as to monitor the RF signal strength between the first bluetooth module and the second bluetooth module.
When the RF signal intensity between the first Bluetooth module and the second Bluetooth module is smaller than a preset value, the link monitoring unit outputs a high-level trigger signal, the generation unit starts, responds to the trigger signal, and periodically marks the current position information of the user terminal in the electronic map. That is, the walking path of the user in the electronic map will be periodically marked in the electronic map to form a path information. In this embodiment, the time for the generation unit to periodically generate the mark is 0.5m or 1 m.
The link monitoring unit is also used for controlling the user terminal to send out an alarm when the RF signal intensity between the first Bluetooth module and the second Bluetooth module is smaller than a second preset value; the user terminal warns through a vibrator or a ring tone carried by the user terminal. In this embodiment, the value of the second preset value may be set to be close to zero, that is, when the signal between the first bluetooth module and the second bluetooth module is weak and will be disconnected. Therefore, when a user feels the warning of the user terminal and checks the user terminal, the user can observe the path information of the RF signal intensity between the first preset value and the second preset value by turning on the corresponding map display unit, and the user can find the interphone by returning according to the path information, so that the purpose of preventing the interphone from being lost is achieved, and the transmission of positioning data of the interphone at any time can be ensured.
Example two:
as shown in fig. 3, a bridge a-GPS interphone application method includes the following steps:
s1, the user terminal obtains the current position information through the A-GPS positioning module;
s2, a first Bluetooth module in the user terminal is connected with a second Bluetooth module in the interphone;
and S3, the interphone acquires the current position information of the user terminal, and the interphone replaces the current position information acquired by the user terminal through the A-GPS positioning module with the current position information acquired by the user terminal through the GPS positioning module and transmits the current position information to the management terminal.
Also comprises the following steps:
s4, monitoring the RF signal intensity between the first Bluetooth module and the second Bluetooth module;
s5, when the intensity of the RF signal is smaller than a first preset value, the current position information of the user terminal is marked in the electronic map periodically, so that the walking path of the user in the electronic map forms a path information;
and S6, when the RF signal intensity is smaller than the second preset value, controlling the user terminal to send out a warning, and when receiving the warning, the user can find the interphone through the path information formed on the electronic map, so as to achieve the purpose of preventing the loss of the interphone.
The above description is intended to be illustrative of the present invention and not to limit the scope of the invention, which is defined by the claims appended hereto.
Claims (6)
1. The utility model provides a bridge connection A-GPS intercom application system, includes the intercom that carries GPS orientation module, and GPS orientation module is used for acquireing intercom current positional information, characterized by, still include the user terminal who carries A-GPS orientation module and bear the user system at user terminal, user system includes:
the device comprises an acquisition unit, a processing unit and a processing unit, wherein the acquisition unit is used for acquiring the current position information of a user terminal;
the control unit is connected with the acquisition unit and used for converting the current position information of the user terminal into a Bluetooth signal to be sent through the first Bluetooth module;
the intercom still includes:
the second Bluetooth module is used for establishing connection with the first Bluetooth module to receive Bluetooth signals, and a Bluetooth serial-to-serial port receiver is connected to the output end of the second Bluetooth module;
the intercepting unit is used for intercepting and detecting whether the second Bluetooth module is connected with the first Bluetooth module so as to output an intercepting signal;
the switch is provided with a control end and a contact end, the contact end comprises an input end, a first output end and a second output end, the first output end of the switch is connected with the output end of the Bluetooth serial-to-serial-port receiver, the second output end of the switch is connected with the output end of the GPS positioning module, and the control end responds to the intercepted signal to control the action of the contact end;
the input end of the microcontroller is connected with the input end of the contact end in the change-over switch, and the microcontroller transmits the current position information of the user terminal to the management terminal through the communication module according to the action of the change-over switch;
the user system also comprises a link monitoring unit, a generating unit and a map display unit;
the map display unit comprises an electronic map displayed on a display screen of the user terminal and displays the current position information of the user terminal on the electronic map;
the link monitoring unit is used for monitoring the RF signal intensity between the first Bluetooth module and the second Bluetooth module and outputting a trigger signal when the RF signal intensity between the first Bluetooth module and the second Bluetooth module is smaller than a first preset value;
and the generating unit responds to the trigger signal and marks the current position information of the user terminal in the electronic map periodically.
2. The bridged a-GPS interphone application system of claim 1, wherein the microcontroller is connected to the input of the contact terminal in the switcher through USART serial port.
3. The system of claim 1, wherein the link monitor unit is further configured to control the user terminal to send an alert when the RF signal strength between the first bluetooth module and the second bluetooth module is less than a second predetermined value.
4. The bridge A-GPS interphone application system of claim 3, wherein the user terminal alarms by a vibrator or ring.
5. The bridge A-GPS interphone application system of claim 3, wherein the time of the generation unit to generate the mark periodically is 0.5m or 1 m.
6. A bridge connection A-GPS interphone application method is characterized by comprising the following steps:
acquiring current position information of a user terminal;
establishing connection with a Bluetooth module II in the interphone through a Bluetooth module I in the user terminal;
the interphone acquires the current position information of the user terminal so as to transmit the current position information acquired by the user terminal to the management terminal instead of the current position information acquired by the user terminal; also comprises the following steps:
monitoring the RF signal intensity between the first Bluetooth module and the second Bluetooth module;
when the intensity of the RF signal is smaller than a first preset value, periodically marking the current position information of the user terminal in an electronic map;
and when the RF signal intensity is smaller than the second preset value, controlling the user terminal to send out an alarm.
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