CN203276592U - Parking stall state sensing system and parking stall state sensing and indicating device - Google Patents
Parking stall state sensing system and parking stall state sensing and indicating device Download PDFInfo
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- CN203276592U CN203276592U CN 201320198306 CN201320198306U CN203276592U CN 203276592 U CN203276592 U CN 203276592U CN 201320198306 CN201320198306 CN 201320198306 CN 201320198306 U CN201320198306 U CN 201320198306U CN 203276592 U CN203276592 U CN 203276592U
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Abstract
The utility model relates to a parking stall state sensing system and a parking stall state sensing and indicating device. The parking stall state sensing and indicating device comprises a geomagnetic field detection module, an infrared distance detection module, a high light LED indication module, a wireless communication module and a control module, wherein the geomagnetic field detection module is used for detecting geomagnetic field disturbance information of a parking stall; the infrared distance detection module is used for measuring the distance between an object above the parking stall and the ground surface; the high light LED indication module is used for indicating parking stall information; when the parking stall is empty, an LED flickers at a certain time interval; when the parking stall is occupied, the LED is out; the wireless communication module is used for transmitting the parking stall state information; the control module is used for initially determining whether a vehicle moves into the parking stall or leaves the parking stall according to the geomagnetic field disturbance information of the parking stall, and the control module is also used for further determining whether a vehicle is positioned on the parking stall according a detection result of the infrared distance detection module, and the control module is also used for driving the high light LED indication module to indicate the parking stall information and driving the wireless communication module to sent the parking stall state information out according to a determination result.
Description
Technical field
The utility model relates to the parking space state detection technology, particularly a kind of wireless parking stall state perception system and parking space state perception and indicating device.
Background technology
Existing parking lot detector can be divided into wired and wireless two kinds according to its communication mode.
The technology that the parking lot detector of wire communication mode adopts comprises supersonic sounding and video detection method etc., these detection methods all need to adopt the mode of wired power supply and wire communication because the required electric energy that expends is high, it is high that but its detection degree of accuracy of detection product that adopts the work of wire communication mode is generally surveyed product than wireless parking space, and wherein supersonic sounding is most widely used.But the limitation of wired parking lot detector maximum is that its installation workload is large, and labor intensive and material will carry out more construction to the parking lot, such as wiring, set up mounting bracket etc.Because the detector energy consumption is high, be unfavorable for energy-conserving and environment-protective.
And the parking lot detector of the communication of prior art, its detection method adopts single terrestrial magnetic field detection mode mostly, the energy that expends due to this detection mode is very little, so this detector can be taked battery powered mode, power without cable power, so also just can take wireless communication mode.Adopt wireless communication means, can greatly reduce the workload when installing and save material cost, the secondary of inner part of parking lot is constructed seldom, the energy consumption of equipment itself is also very low.but, the detection principle of this method is by detection vehicle, the disturbance in magnetic field of the earth to be judged the existence of vehicle, manufactured materials due to different vehicle, highly, the diversity of chassis frame structure, cause its disturbance situation to the magnetic field of the earth different, vary in size, the disturbance that the chassis central authorities of some vehicle bring the magnetic field of the earth is very little, the chassis of some oversize vehicle is very high, cause the detector detection on ground less than the existence of vehicle, also some vehicle is due to a large amount of alumina based material or plastics of adopting, its ferromagnetism is very weak, cause the disturbance of terrestrial magnetic field also very faint, to such an extent as to the detector on ground can't detect the existence of vehicle, these situations all cause taking the parking stall perceptron meeting of single terrestrial magnetic field detection mode undetected, detection accuracy is low, error is large.
In addition, existing parking stall indicating means is all to set up separately a LED light above the parking stall, when on the parking stall, car being arranged, and normal shiny red, when on the parking stall during without car, normal bright green produces the parking guidance effect with this.But red green situation about mixing also easily occurs, green empty parking space indication often is not easy to find.The whole azarins in whole parking lot or green light, vision easily causes discomfort.And all parking stalls are not that redness is namely green, produce huge power consumption.Therefore, provide a kind of inducing action obviously and the parking space state indicating mode of saves energy very necessary.
In addition, reach hundreds of parking stalls in the parking lot, need unified monitoring and management, therefore at first need one to overlap parking stall status information sensory perceptual system, to gather the status information of each parking stall.Because the parking lot circumstance complication, especially indoor again, various pillars, various cart dolly, to the transmission of wireless signal block, decaying is difficult to control, and therefore provides a cover reliable wireless parking stall state perception system also very necessary.
The utility model content
One of the purpose of this utility model is to provide a kind of parking space state perception and indicating device, improves the detection accuracy of parking space state, keeps the low energy consumption of equipment, and plays indication and inducing action clearly.
Another purpose of the present utility model is to provide a kind of parking space state perception and indicating device, and the result of detection of distance measurement module infrared according to it further judges the vehicle that parks cars on the parking stall.
The utility model also has a purpose to be to provide a kind of parking space state perception and indicating device, and the location sensitive module built-in according to it is according to handstand and upright output low level or the high level signal of device, with the switching on and shutting down of control device.
The utility model purpose again is to provide a kind of parking space state sensory perceptual system, applies to the parking lot, gathers the status information of all parking stalls in the parking lot.
This parking space state perception and indicating device are installed on each parking stall ground surface in the parking lot, and this parking space state perception and indicating device comprise: a terrestrial magnetic field detecting module, for the disturbance information of unloading lot detection terrestrial magnetic field; One infrared distance measurement module is for the height of measuring object distance ground, top, parking stall; One highlighted LED indicating module is used to indicate parking space information, and when the parking stall was empty, this LED was according to the certain hour interval flashing, and when the parking stall was occupied, this LED extinguished; One wireless communication module is in order to send parking space state information; An and control module, tentatively judge whether have vehicle to sail into or leave on the parking stall in order to the disturbance information according to this terrestrial magnetic field, the result of detection of distance measurement module infrared according to this judges further whether vehicle is arranged on the parking stall again, wherein, the hot outer height that detects object distance ground, parking stall top apart from detecting module is in conventional vehicles chassis height scope, judging has vehicle on the parking stall, and according to this highlighted LED indicating module indication parking space information of this judged result driving and this wireless communication module of driving, this parking space state information is sent.
Preferably, this highlighted LED indicating module adopts charge pump to drive, and reaches the purpose of large electric current.A flicker cycle setting LED is not wait in 1 to 10 second, and in one-period, LED really lights the time of work and sets a few to tens of milliseconds, the working method of this flicker, from human eye, the impression of light source is experienced, had more inducing action than continuous firing mode, and available powered battery.
Preferably, this control module also is used for optionally starting this infrared distance measurement module, terrestrial magnetic field, the parking stall value that this control module is surveyed this terrestrial magnetic field detecting module compare with a background terrestrial magnetic field value its rate of change absolute value again with a non-zero preset value comparison, if this rate of change absolute value is less than this non-zero preset value, start this infrared distance measurement module, wherein this non-zero preset value is the arbitrary value between 5%～10%, and this background terrestrial magnetic field value refers to not have vehicle to be parked in situation on the parking stall this earth magnetism detecting module and surveys terrestrial magnetic field, the parking stall value that obtains.That is to say, this parking space state perception and indicating device are in state detection parking space state on duty with the lower terrestrial magnetic field detecting module of energy consumption, accurate control in conjunction with control module, only just start the infrared distance measurement module high but that detection accuracy is high that consumes energy and do further judgement in the indefinite situation of result of detection, so parking space state perception and indicating device that the utility model provides have been realized the purpose that energy consumption is low and detection accuracy is high.
Preferably, this control module also is used for judging according to the result of detection of infrared distance measurement module the vehicle that parks cars on this parking stall, wherein, the height that detects object distance ground, parking stall top is between 10～17.5cm the time, and it is general car that there are vehicle and vehicle in top, judgement parking stall; The height that detects object distance ground, parking stall top is between 20～25cm the time, and it is offroad vehicle that there are vehicle and vehicle in top, judgement parking stall; The height that detects object distance ground, parking stall top is during greater than 25cm and less than 1m, and it is oversize vehicle that there are vehicle and vehicle in top, judgement parking stall.height due to infrared distance measurement module by the mode unloading lot detection top object of range finding judges whether the top, parking stall has storing cycle, with respect to only coming whether have object to judge whether the top, parking stall has vehicle above unloading lot detection by diffuse reflection, the mode of range finding can judge parking space state more exactly, got rid of the detecting error that parking stall top ceiling or other buildings reflects infrared light bands come, and the result of detection by infrared distance measurement module, chassis height data in conjunction with various vehicles, can roughly judge the vehicle that the top, parking stall parks cars, so parking space state perception and indicating device that the utility model provides are higher to the parking space state detection accuracy.
Preferably, this parking space state perception and indicating device also comprise a location sensitive module, this location sensitive module is according to the upright of this parking space state perception and indicating device or handstand, give this control module output one high level or low level signal, this control module enters duty or dormant state according to this high level or low level signal, to start or to close this parking space state perception and indicating device.By the software control of built-in location sensitive module in conjunction with control module, realize the switching on and shutting down of product like this, so product casing can do and to get sealing fully, water proof and dust proof is convenient to packed and transported and installation and operation.That is to say, can be placed in handstand state in packing of product transportation, the product introduction off-mode, to save power supply, upright during installation, the product Auto Power On enters duty.
Preferably, after the high level of this location sensitive module output or low level signal continued a schedule time, this control module entered duty or dormant state according to this high level or low level signal again, and wherein this schedule time is the arbitrary value in 2 to 10 seconds.That is to say, this control module is not to carry out corresponding action once receiving low level or high level, reach a certain schedule time but will continue to receive this level, such as 2 to 10 seconds can, if within the so long time, signal level is stable, there is no saltus step, control module thinks that level is not external vibration and jolts so, but product has really been come by upright, like this, with regard to filtering well the outside maloperation of jolting and rocking and causing to product.
Preferably, this parking space state perception and indicating device also comprise a location sensitive module and an energy supply control module, this location sensitive module is according to the upright of this parking space state perception and indicating device or handstand, give this energy supply control module output one high level or low level signal, to control power turn-on or the cut-out of this parking space state perception and indicating device.With respect to the mode of above-mentioned software control product switching on and shutting down, this parking space state perception and indicating device have the controlling hard switch machine function, directly control power supply, do not need the intervention of software, and work is directly simple, and efficient is high, and be stable.
Preferably, this location sensitive module also arranges a filtering circuit at its output port, is shorter than the pulse signal of the schedule time with the filtering duration, and wherein this schedule time is the arbitrary value in 2 to 10 seconds.This filtering circuit is for the pulse filtering of jolting of location sensitive module, only have sufficiently long stabilization signal stabilization time, could pass through, so just solved product in transit equally, the vibration if jolt, just constantly switching on and shutting down and cause the problem of waste of energy.
The parking space state sensory perceptual system that the utility model provides, be used for gathering the status information of all parking stalls in the parking lot, this parking space state sensory perceptual system comprises: a plurality of parking space state perception as above and indicating device, be installed on respectively on ground surface corresponding to each parking stall in the parking lot, be respectively used to perception, indication and send the parking space state information of corresponding parking stall; One data basestation is used for receiving the parking space state detection data of all parking space state perception and indicating device output, and this parking space state is detected other opertaing devices that data send to the parking lot; A plurality of wireless routers, the parking space state that is used for the output of this parking space state perception of switching and indicating device detects data to this data basestation; Wherein, form the mesh network structure between this data basestation, this wireless router and this parking space state perception and indicating device.Like this, each node has more than path the transmission of data outward, guaranteed the reliability of data transmission, self-organization dynamic routing function in conjunction with router, if environment changes, the accidents such as certain router deadlock perhaps occur temporarily, and communication link can dynamically be adjusted according to actual conditions.
Preferably, the allocation ratio of this wireless router and this parking space state perception and indicating device is 1: 1～1: 50.
In sum, the mode that the parking space state perception that the utility model provides and indicating device adopt the terrestrial magnetic field detecting module to be combined with infrared distance measurement module, state by two kinds of means perception parking stalls, guarantee low energy consumption, improved detection accuracy, and adopt the mode of high-brightness LED lamp flicker to indicate parking space information, has clear strong inducing action, principle by charge pump drives again, and battery supply can be powered, and saves energy.In addition, this parking space state perception and indicating device also are provided with the switching on and shutting down of built-in location sensitive module control device, realize the automatic opening/closing function of product, do not need manual operation bidirectional, so shell can be done to get positive confinement, water proof and dust proof.
In addition, the wireless parking stall state perception system that the utility model provides adopts the mode of router and parking space state perception and indicating device mesh network structure distribution, utilizes router self-organization dynamic routing function, realizes the transmitting of parking space state information data.
Description of drawings
Fig. 1 is the parking space state perception that provides of the utility model the first embodiment and the construction module figure of indicating device;
Fig. 2 is the parking space state perception that provides of the utility model the second embodiment and the construction module figure of indicating device;
Fig. 3 is the parking space state perception that provides of the utility model the 3rd embodiment and the construction module figure of indicating device;
Fig. 4 is the reticulate texture schematic diagram of the parking space state sensory perceptual system that provides of the utility model one preferred embodiment;
Fig. 5 is parking space state perception and the single workflow diagram that once gathers parking space state information of indicating device that the utility model one preferred embodiment provides.
Embodiment
Below in conjunction with accompanying drawing, parking space state perception provided by the utility model and indicating device and parking space state sensory perceptual system are described further, only with several technical schemes of optimizing, the technical solution of the utility model and design concept are described in detail below it is pointed out that.
The parking space state perception that the utility model provides and indicating device have a complete hermetic transparent outer cover, be installed on each parking stall ground surface in the parking lot, as shown in Figure 1, the parking space state perception and the indicating device 1 that provide of the utility model the first embodiment comprises terrestrial magnetic field detecting module 10, infrared distance measurement module 20, highlighted LED indicating module 60, control module 30, wireless communication module 40 and battery 50.Wherein this terrestrial magnetic field detecting module 10 is used for the disturbance information of unloading lot detection terrestrial magnetic field, that is to say, whether size and/or direction that this terrestrial magnetic field detecting module 10 may detect terrestrial magnetic field on the parking stall change; This infrared distance measurement module 20 is used for measuring the height on object distance ground, top, parking stall; This highlighted LED indicating module is used to indicate parking space information, and when the parking stall was empty, this LED was according to the certain hour interval flashing, and when the parking stall was occupied, this LED extinguished; At first this control module 30 tentatively judges whether have vehicle to sail into or leave on the parking stall by the disturbance information of this terrestrial magnetic field, the result of detection of distance measurement module infrared according to this judges further whether vehicle is arranged on the parking stall again, the hot outer height that detects object distance ground, parking stall top apart from detecting module is in conventional vehicles chassis height scope, judging has vehicle on the parking stall, this control module 30 also drives this highlighted LED indicating module indication parking space information according to this judged result; Whether 40 of this wireless communication modules with the judged result of this control module 30, namely have the information of storing cycle to send under the driving of this control module 30 on the parking stall; Battery 50 provides power supply for parking space state perception and indicating device, and the energy of work namely is provided for above-mentioned each module.
Importantly, this control module 30 also is used for optionally starting this infrared distance measurement module 20.That is to say, the infrared distance measurement module 20 that this energy consumption is higher is not always in running order, and only has the lower terrestrial magnetic field detecting module 10 of energy consumption to be in state on duty.When this terrestrial magnetic field detecting module 10 detects the terrestrial magnetic field, parking stall disturbance information is arranged, terrestrial magnetic field, the parking stall value that this control module 30 is surveyed this terrestrial magnetic field detecting module 10 is compared its rate of change absolute value and non-zero preset value comparison with background terrestrial magnetic field value, if this terrestrial magnetic field, parking stall rate of change absolute value less than this non-zero preset value, starts this infrared distance measurement module 20.That is to say, when the terrestrial magnetic field, parking stall changes greatly, this terrestrial magnetic field rate of change absolute value is during greater than this non-zero preset value, and this parking space state perception and indicating device are accurately judgement parking space state of responsible this terrestrial magnetic field detecting module 10, does not need to start the infrared distance measurement module 20 of high energy consumption; And local detection of magnetic field module 10 detects parking stall geomagnetic field disturbance information, but this rate of change absolute value is during less than the non-zero preset value, terrestrial magnetic field detecting module 10 can not judge accurately whether the top, parking stall has vehicle, just start infrared distance measurement module 20, judge further by the infrared acquisition means whether the top, parking stall has vehicle, to improve the detection accuracy of this parking space state perception and indicating device.
Wherein, this non-zero preset value can be the arbitrary value between 5%～10%.Certainly this preset value can be decided according to the actual requirements, and when this preset value arranges greatlyr, the startup frequency of this infrared distance measurement module 20 may be higher, and the energy consumption of whole parking space state perception and indicating device can increase; If this preset value arranges lowlyer, the startup frequency of this infrared distance measurement module 20 can be lower, and whole parking space state perception and indicating device can keep than low energy consumption.Due to this parking space state perception and 50 power supplies of indicating device employing battery, general in the situation that terrestrial magnetic field detecting module 10 can guarantee certain judging nicety rate in order to extend life of product, select a lower preset value.For example, the terrestrial magnetic field detecting module 10 that adopts detects on the parking stall geomagnetic disturbance information greater than 5 percent, judge that parking stall top has the accuracy rate of vehicle can reach 99 percent or other acceptable accuracys rate, this preset value can be set to 5 percent.
In addition, this control module 30 also is used for judging according to the result of detection of infrared distance measurement module 20 vehicle that parks cars on this parking stall.That is to say, due to infrared distance measurement module 20 can the Measurement accuracy vehicle height on object distance ground, top, therefore according to this elevation information, the elevation information of vehicle chassis namely, in conjunction with conventional vehicles chassis height data, can further judge the vehicle that the top, parking stall parks cars.For example, the height that detects object distance ground, parking stall top is between 10～17.5cm the time, and it is general car that there are vehicle and vehicle in top, judgement parking stall; The height that detects object distance ground, parking stall top is between 20～25cm the time, and it is offroad vehicle that there are vehicle and vehicle in top, judgement parking stall; The height that detects object distance ground, parking stall top is during greater than 25cm and less than 1m, and it is oversize vehicle that there are vehicle and vehicle in top, judgement parking stall.
In addition, this infrared distance measurement module 20 can be the phase type infrared distance sensor, can be also the pulsed infrared distance sensor, and its measuring distance scope does not wait from 5cm to 500cm.the parking space state perception and the indicating device that provide due to the present embodiment adopt infrared distance measurement module to judge by the height of object above the mode unloading lot detection of range finding whether the top, parking stall has storing cycle, with respect to only coming whether have object to judge whether the top, parking stall has vehicle above unloading lot detection by diffuse reflection, the present embodiment can judge parking space state more exactly, got rid of the detecting error that parking stall top ceiling or other buildings reflects infrared light bands come, and the result of detection by infrared distance measurement module, chassis height data in conjunction with various vehicles, can roughly judge the vehicle that the top, parking stall parks cars, so parking space state perception and indicating device detection accuracy that the present embodiment provides are higher.
Specifically, because battery powered instantaneous energy is limited, in order to satisfy the required large drive current of highlighted LED, the drive unit of LED adopts the charge pump principle, figuratively speaking, is that little electric current is bit by bit gathered together, then discharge quickly, reach the purpose of large electric current.In specific implementation, to experience according to the user, a flicker cycle setting LED is approximately 1 to 10 second and does not wait, and in one-period, LED really lights the time of work and sets a few to tens of milliseconds.By such setting, in the work period, between LED only worked when very little, still, the working method of this flicker is experienced the impression of light source from human eye, and was poor unlike the continuous firing mode.
In addition, in order to solve the switching on and shutting down problem of product, the parking space state perception that the utility model provides and indicating device also are provided with a location sensitive module 70, as shown in Figure 2, the parking space state perception that the utility model the second embodiment provides and indicating device are on the basis of the first embodiment, increased a location sensitive module 70, this location sensitive module 70 is electrically connected to this control module 30.This location sensitive module 70 is according to the upright of this parking space state perception and indicating device or handstand, give this control module 30 output one high level or low level signals, this control module 30 enters duty or dormant state according to this high level or low level signal, to start or to close this parking space state perception and indicating device.In the present embodiment, this location sensitive module 70 is mainly a ball switch, and along with the upright of product or handstand, metal balls conducting or disconnecting circuit are realized the switching on and shutting down of product.
Need to prove, the control module 30 of interiors of products is worked always, and so-called shutdown is exactly that control module 30 enters dormant state, whole like this product introduction dormant state, and power consumption is very low, and being close to is shutdown.But the control module of dormant state 30 can be waken up by an external signal.In the present embodiment, when product stands upside down, what location sensitive module 70 was exported to control module 30 is a low level always, in case product is upright, high level of location sensitive module 70 outputs is to control module 30, control module 30 is waken up by this signal and is started working so, also namely start whole product work, because other functional unit of interiors of products is such as detection of magnetic field module 10, infrared distance measurement module 20, highlighted LED indicating module 60, wireless communication module 40 are all to work under the control of control module 30.At this moment, the so-called start exactly.In the start duty, control module 30 equally can Real Time Monitoring from the signal of location sensitive module 70, if find to have high level to occur, just think that product has been squeezed, control module 30 is just controlled all functional modules so, i.e. whole product introduction dormant state, i.e. shutdown.
In addition, what need to further illustrate is, we have added one and allowed the reliable method of product work also on such working foundation.Because the daily stock of product and in transit is to want off-mode, so product is all inversion state in the packing of dispatching from the factory.But can not avoid jolting in transit,, Vibration Condition occurs.and above-mentioned location sensitive module 70 the insides or be that a little mercury drips, it is a small metal ball, perhaps or be other object to gravity sensing, those objects are when vibration or jolting, corresponding vibration signal output all may appear, namely location sensitive module 70 can be along with the rambling pulse train of output of jolting of product, cause constantly start of control module 30 thereupon, shutdown, start, shutdown ... the action of some row, thereby cause product in transit, the vibration if jolt, just may constantly start shooting and cause waste of energy.In order to address this problem, we are in the signal of processing from location sensitive module 70, not to carry out corresponding action once receiving low level or high level, reach a certain schedule time but will continue to receive this level, such as 2 to 10 seconds can, if within the so long time, signal level is stable, there is no saltus step, processor thinks that level is not external vibration and jolts so, but product has really been come by upright.Like this, with regard to filtering well the outside maloperation of jolting and rocking and causing to product.
In addition, thisly rely on the soft identification of control module 30 to carry out " start ", " shutdown " fully except above-mentioned, this parking space state perception and indicating device can also select to adopt real hard machine open/close.As shown in Figure 3, in the parking space state perception that the utility model the 3rd embodiment provides and indicating device and Fig. 2, the parking space state perception is compared with indicating device, further increased an energy supply control module 80, and this location sensitive module 70 no longer is electrically connected to control module 30, but directly is connected with energy supply control module 80.Therefore in the present embodiment, the signal of these location sensitive module 70 outputs is not to control module 30, but is used for controlling energy supply control module 80.Like this, product stands upside down, location sensitive module 70 output high level, and the metal-oxide-semiconductor cut-off, whole product power supply directly cuts off, and reaches hardware shutdown purpose.When product just immediately, position switch output low level, metal-oxide-semiconductor conducting, whole product power connection, start work.Such process is hard ON/OFF, and effect is the same with soft switch.
The hard switching pattern has a problem of jolting equally.Solution is the filtering circuit of output port interpolation at position induction module 70, and this circuit only has the stabilization signal of long enough stabilization time (such as 1 to 10 second) to pass through for the pulse filtering of jolting of location sensitive module 70.So solved product in transit equally, if jolt vibration, just constantly switching on and shutting down and cause the problem of waste of energy.Can find out, the mode of hard switching is directly controlled power supply, does not need the intervention of software, and work is directly simple, and efficient is high, and is stable.
Introduce the workflow of this parking space state perception and indicating device below in conjunction with Fig. 5, wherein this flow process shown in Figure 5 is the flow process of the single perception of parking space state perception and indicating device and indication parking space state, this parking space state perception and indicating device are that constantly this flow process is carried out in circulation, and this parking space state perception and indicating means comprise:
Step 4 judges that whether these terrestrial magnetic field, parking stall data after tending to be steady compare its rate of change absolute value greater than a non-zero predetermined value with background terrestrial magnetic field value, if so, enters step 8; If not, enter step 5; Tend to be steady terrestrial magnetic field value constantly and do not have vehicle to be parked in that in situation on the parking stall, measured terrestrial magnetic field, the parking stall value that obtains (namely background terrestrial magnetic field value) compares that control module will detect, if its difference is not obvious, express with rate of change, for example, rate of change is thought without vehicle in 10%.This situation may be really because vehicle stops sailing out of again into halfway, even may be also because the ferromagnetism at vehicle chassis middle part causes having vehicle to be parked on the parking stall a little less than too, but that the terrestrial magnetic field detecting module is surveyed the terrestrial magnetic field value that obtains be very little with respect to stop superincumbent background magnetic field variable quantity without car.Therefore, in order to improve detection reliability, prevent that this less variable quantity from being because the drift of terrestrial magnetic field but not the otherness of vehicle cause, the parking space state perception that the present embodiment provides and indicating device are specially incited somebody to action first, and probe value variable quantity in terrestrial magnetic field all is considered as and can't determines with interior situation 10%, need to continue step 5, start infrared distance measurement module and further confirm.
Step 7 draws and indicates result of detection: there is no vehicle on the parking stall, start the LED lamp flicker of highlighted LED module, with the idle condition of indication parking stall.
The parking space state perception that the utility model provides and indicating device have the function of indication parking space state information, it adopts the mode of high-brightness LED lamp flicker to indicate parking space information, has clear strong inducing action, then drives by the principle of charge pump, battery supply can be powered, and saves energy.
In addition, adopt ground magnetic detection and two kinds of compound detection modes of means of infrared acquisition, avoid solely magnetic detection means because of the difference of vehicle material, framed structure, and the error in judgement that causes of the factors such as drift in magnetic field of the earth, and single infrared acquisition means can not take battery powered working method because power consumption is high, thereby can not use the defective of communication.With two kinds of detection modes that detection means is compound, reach the accuracy that both improves detection, reduce again the purpose of energy consumption.
The more important thing is, the parking space state perception that the utility model provides and indicating device with power consumption lower and detection accuracy also low earth magnetism detecting module with mode continuous firing on duty, only in the situation that the earth magnetism detecting module can't correctly judge, just start the high but energy consumption of detection accuracy also high infrared distance measurement module carry out compound judgement, thereby in the guaranteed situation of detection accuracy, reduce the number of starts of infrared distance measurement module, further reduce power consumption.Therefore, the perception of the utility model parking space state and indicating device work in the super low-power consumption state, can adopt the powered battery mode, reach the purpose of energy-conserving and environment-protective.
and, the infrared distance measurement module that the parking space state perception that the utility model provides and indicating device adopt judges by the height of object above the mode unloading lot detection of range finding whether the top, parking stall has storing cycle, with respect to only coming whether have object to judge whether the top, parking stall has vehicle above unloading lot detection by diffuse reflection, the mode of range finding can judge parking space state more exactly, got rid of the detecting error that parking stall top ceiling or other buildings reflects infrared light bands come, and the result of detection by infrared distance measurement module, chassis height data in conjunction with various vehicles, can roughly judge the vehicle that the top, parking stall parks cars, so parking space state perception and indicating device detection accuracy that the utility model provides are higher.
In addition, the parking space state perception that the utility model provides and indicating device adopt wireless communication means, make product install quick, convenient, save mounting material, at utmost keep the neat and artistic of parking lot environment.
The utility model also provides a kind of parking space state sensory perceptual system, and as shown in Figure 4, this parking space state sensory perceptual system comprises a plurality of parking space state perception and indicating device, a plurality of routers, and a data base station.This parking space state perception and indicating device can be a arbitrarily in above-mentioned the first embodiment to the three embodiment, are installed on respectively on ground surface corresponding to each parking stall in the parking lot, are used for perception, indication and send the parking space state information of corresponding parking stall.This data basestation is used for receiving the parking space state detection data of all parking space state perception and indicating device output, and this parking space state is detected other opertaing devices that data send to the parking lot, produce charge system, gateway gate, property backstage etc. such as stopping; The parking space state that a plurality of wireless routers are used for this parking space state perception of switching and indicating device output detects data to this data basestation; Wherein, form the mesh network structure between this data basestation, wireless router and this parking space state perception and indicating device, each router and data basestation all can directly connect this parking space state perception and indicating device.Router generally is mounted on the ceiling in parking lot, if motor pool, generally being positioned at beam column etc. has on the buildings of certain altitude, because the above is complicated unlike ground environment, generally all spacious, so the data transmission credibility between router is high, add the self-organization dynamic routing function between router, can guarantee the reliable key communication under complexity or changeable environment.Be installed on ground parking space state perception and indicating device and be connected to any one router nearby no matter environment how, needs only.Be 65535 on the number upper-bound theory of parking space state perception and indicating device, the present embodiment can be controlled in 100 to 200 left and right.Router is seen on-the-spot situation, if environment is good, signal quality is good, can fill less several, if on-the-spot complicated, can fill severally more, the router number is many, network is more stable, and preferred, the allocation ratio of wireless router and this parking space state perception and indicating device is 1: 1～1: 50.
Because router has self-organization dynamic routing function, so the mesh network structure that forms between this data basestation, wireless router and this parking space state perception and indicating device, can realize the transmitting of data.That is to say, if parking space state perception and indicating device send to data basestation to data through certain several router, but in the middle of have individual route go bad, network can the other alternative route of automatic selection, always can transfer data to the base station.So, between all wireless routing nodes, each node has more than path the transmission of data outward, guaranteed the reliability of data transmission, if environment changes, any accident perhaps occurs temporarily, communication link can dynamically be adjusted according to actual conditions.Data transmission is initiated by parking space state perception and indicating device, and whom this parking space state perception and indicating device sensation just send the parking space state information data apart from which router or data basestation nearly (namely signal is the strongest) toward.If near does not connect, think that near this gone bad, just look for and taking second place.Can not cascade between parking space state perception and indicating device, multi-hop, can only be connected to route or data basestation star-likely, after data transmission entered into this layer of router backbone network, random selected the road warp according to link-quality, until data basestation.
Be below only preferred implementation of the present utility model, should be pointed out that above-mentioned preferred implementation should not be considered as restriction of the present utility model, protection domain of the present utility model should be as the criterion with the claim limited range.For those skilled in the art, within not breaking away from spirit and scope of the present utility model, can also make some improvements and modifications, these improvements and modifications also should be considered as protection domain of the present utility model.
Claims (10)
1. a parking space state perception and indicating device, be installed on each parking stall ground surface in the parking lot, and this parking space state perception and indicating device comprise:
One terrestrial magnetic field detecting module is for the disturbance information of unloading lot detection terrestrial magnetic field;
One infrared distance measurement module is for the height of measuring object distance ground, top, parking stall;
One highlighted LED indicating module is used to indicate parking space information, and when the parking stall was empty, this LED was according to the certain hour interval flashing, and when the parking stall was occupied, this LED extinguished;
One wireless communication module is in order to send parking space state information; And
One control module, tentatively judge whether have vehicle to sail into or leave on the parking stall in order to the disturbance information according to this terrestrial magnetic field, the result of detection of distance measurement module infrared according to this judges further whether vehicle is arranged on the parking stall again, wherein, the hot outer height that detects object distance ground, parking stall top apart from detecting module is in conventional vehicles chassis height scope, judging has vehicle on the parking stall, and according to this highlighted LED indicating module indication parking space information of this judged result driving and this wireless communication module of driving, this parking space state information is sent.
2. parking space state perception as claimed in claim 1 and indicating device, is characterized in that, this highlighted LED indicating module adopts charge pump to drive.
3. parking space state perception as claimed in claim 1 and indicating device, it is characterized in that, this control module also is used for optionally starting this infrared distance measurement module, terrestrial magnetic field, the parking stall value that this control module is surveyed this terrestrial magnetic field detecting module compare with a background terrestrial magnetic field value its rate of change absolute value again with a non-zero preset value comparison, if this rate of change absolute value is less than this non-zero preset value, start this infrared distance measurement module, wherein this non-zero preset value is the arbitrary value between 5%～10%, this background terrestrial magnetic field value refers to not have vehicle to be parked in situation on the parking stall this earth magnetism detecting module and surveys terrestrial magnetic field, the parking stall value that obtains.
4. parking space state perception as claimed in claim 1 and indicating device, it is characterized in that, this control module also is used for judging according to the result of detection of infrared distance measurement module the vehicle that parks cars on this parking stall, wherein, the height that detects object distance ground, parking stall top is between 10～17.5cm the time, and it is general car that there are vehicle and vehicle in top, judgement parking stall; The height that detects object distance ground, parking stall top is between 20～25cm the time, and it is offroad vehicle that there are vehicle and vehicle in top, judgement parking stall; The height that detects object distance ground, parking stall top is during greater than 25cm and less than 1m, and it is oversize vehicle that there are vehicle and vehicle in top, judgement parking stall.
5. parking space state perception as claimed in claim 1 and indicating device, it is characterized in that, this parking space state perception and indicating device also comprise a location sensitive module, this location sensitive module is according to the upright of this parking space state perception and indicating device or handstand, give this control module output one high level or low level signal, this control module enters duty or dormant state according to this high level or low level signal, to start or to close this parking space state perception and indicating device.
6. parking space state perception as claimed in claim 5 and indicating device, it is characterized in that, after the high level of this location sensitive module output or low level signal continue a schedule time, this control module enters duty or dormant state according to this high level or low level signal again, and wherein this schedule time is the arbitrary value in 2 to 10 seconds.
7. parking space state perception as claimed in claim 1 and indicating device, it is characterized in that, this parking space state perception and indicating device also comprise a location sensitive module and an energy supply control module, this location sensitive module is according to the upright of this parking space state perception and indicating device or handstand, give this energy supply control module output one high level or low level signal, to control power turn-on or the cut-out of this parking space state perception and indicating device.
8. parking space state perception as claimed in claim 7 and indicating device, it is characterized in that, this location sensitive module also arranges a filtering circuit at its output port, is shorter than the pulse signal of the schedule time with the filtering duration, and wherein this schedule time is the arbitrary value in 2 to 10 seconds.
9. parking space state sensory perceptual system is used for gathering the status information of all parking stalls in the parking lot, and this parking space state sensory perceptual system comprises:
A plurality of parking space state perception as described in any one in claim 1～8 and indicating device are installed on respectively on ground surface corresponding to each parking stall in the parking lot, are respectively used to perception, indication and send the parking space state information of corresponding parking stall;
One data basestation is used for receiving the parking space state detection data of all parking space state perception and indicating device output, and this parking space state is detected other opertaing devices that data send to the parking lot;
A plurality of wireless routers, the parking space state that is used for the output of this parking space state perception of switching and indicating device detects data to this data basestation;
It is characterized in that, form the mesh network structure between this data basestation, this wireless router and this parking space state perception and indicating device.
10. parking space state sensory perceptual system as claimed in claim 9, is characterized in that, the allocation ratio of this wireless router and this parking space state perception and indicating device is 1: 1～1: 50.
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| Application Number | Priority Date | Filing Date | Title |
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| CN 201320198306 CN203276592U (en) | 2013-04-18 | 2013-04-18 | Parking stall state sensing system and parking stall state sensing and indicating device |
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| CN 201320198306 CN203276592U (en) | 2013-04-18 | 2013-04-18 | Parking stall state sensing system and parking stall state sensing and indicating device |
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| CN203276592U true CN203276592U (en) | 2013-11-06 |
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Cited By (10)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103258441A (en) * | 2013-04-18 | 2013-08-21 | 中山市路讯智能交通科技有限公司 | Parking space state sensing system and parking space state sensing and indicating device |
| CN105047010A (en) * | 2015-06-25 | 2015-11-11 | 苏州市英富美欣科技有限公司 | System for wirelessly detecting parking stall in parking lot |
| TWI613626B (en) * | 2017-04-20 | 2018-02-01 | Chen Yan | Vehicle in-seat detection device |
| CN107730995A (en) * | 2017-11-21 | 2018-02-23 | 微传智能科技（常州）有限公司 | It is a kind of to combine parking space detection method and the system that data judge |
| US10043390B2 (en) | 2016-12-09 | 2018-08-07 | Gemtek Technology Co., Ltd. | Parking space sensor |
| CN108986518A (en) * | 2017-06-03 | 2018-12-11 | 陈啸 | A kind of parking stall identifying system |
| CN108986519A (en) * | 2017-06-03 | 2018-12-11 | 陈啸 | A kind of parking lot intelligent lamp light guide system |
| CN108986520A (en) * | 2017-06-03 | 2018-12-11 | 陈啸 | A kind of lamp light control system |
| CN108986517A (en) * | 2017-06-03 | 2018-12-11 | 陈啸 | A kind of parking apparatus |
| CN108986523A (en) * | 2017-06-03 | 2018-12-11 | 陈啸 | A kind of parking lot intellectualized reconstruction method |
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2013
- 2013-04-18 CN CN 201320198306 patent/CN203276592U/en not_active Expired - Lifetime
Cited By (11)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103258441A (en) * | 2013-04-18 | 2013-08-21 | 中山市路讯智能交通科技有限公司 | Parking space state sensing system and parking space state sensing and indicating device |
| CN105047010A (en) * | 2015-06-25 | 2015-11-11 | 苏州市英富美欣科技有限公司 | System for wirelessly detecting parking stall in parking lot |
| US10043390B2 (en) | 2016-12-09 | 2018-08-07 | Gemtek Technology Co., Ltd. | Parking space sensor |
| TWI633525B (en) * | 2016-12-09 | 2018-08-21 | 正文科技股份有限公司 | Parking position sensing device |
| TWI613626B (en) * | 2017-04-20 | 2018-02-01 | Chen Yan | Vehicle in-seat detection device |
| CN108986518A (en) * | 2017-06-03 | 2018-12-11 | 陈啸 | A kind of parking stall identifying system |
| CN108986519A (en) * | 2017-06-03 | 2018-12-11 | 陈啸 | A kind of parking lot intelligent lamp light guide system |
| CN108986520A (en) * | 2017-06-03 | 2018-12-11 | 陈啸 | A kind of lamp light control system |
| CN108986517A (en) * | 2017-06-03 | 2018-12-11 | 陈啸 | A kind of parking apparatus |
| CN108986523A (en) * | 2017-06-03 | 2018-12-11 | 陈啸 | A kind of parking lot intellectualized reconstruction method |
| CN107730995A (en) * | 2017-11-21 | 2018-02-23 | 微传智能科技（常州）有限公司 | It is a kind of to combine parking space detection method and the system that data judge |
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Granted publication date: 20131106 |