CN220535654U - Vehicle detection system - Google Patents
Vehicle detection system Download PDFInfo
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- CN220535654U CN220535654U CN202320645277.4U CN202320645277U CN220535654U CN 220535654 U CN220535654 U CN 220535654U CN 202320645277 U CN202320645277 U CN 202320645277U CN 220535654 U CN220535654 U CN 220535654U
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- 238000010276 construction Methods 0.000 description 10
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Abstract
The utility model discloses a vehicle detection system. The system comprises: the device comprises a geomagnetic sensor, a receiver and an upper computer; the geomagnetic sensor is used for detecting the magnetic field intensity above the strand and transmitting the magnetic field intensity to the receiver through a low-power-consumption local area network wireless communication protocol; the receiver is used for determining whether a vehicle exists above the track or not based on the magnetic field intensity received by two adjacent times, generating vehicle parking warning information when the vehicle exists above the track, and sending the vehicle parking warning information to the upper computer; the upper computer is used for receiving the vehicle stop warning information and displaying the vehicle stop warning information. The vehicle detection system provided by the utility model can realize the purpose of detecting the vehicle above the track in a wireless communication mode, saves labor cost and time cost, increases the flexibility and convenience of vehicle detection, and improves the detection efficiency and speed of vehicle detection.
Description
Technical Field
The embodiment of the utility model relates to the technical field of intelligent transportation, in particular to a vehicle detection system.
Background
At present, in a subway vehicle section or a high-speed railway motor train section, cables are required to be laid and civil construction is required, and whether vehicles stop on a stock road or not is detected in a wired mode.
However, because the underground pipeline is complex, the construction difficulty is high and the construction risk is high when cables are laid and civil engineering is performed; after the cable laying and civil construction are completed, a technician can detect whether a station track has a vehicle stop in a wired mode after debugging is completed on site, so that the system is not convenient and flexible.
Disclosure of Invention
The embodiment of the utility model provides a vehicle detection system, which can save the time cost of field debugging of technicians, does not need to manually lay cables and perform civil engineering, saves a great amount of labor cost, solves the problems of high construction difficulty and high construction risk when laying the cables and performing civil engineering, saves the labor cost and the time cost, realizes the purpose of vehicle detection in a wireless communication mode among a geomagnetic sensor, a receiver and an upper computer, increases the flexibility and convenience of vehicle detection, and improves the detection efficiency and speed of vehicle detection.
An embodiment of the present utility model provides a vehicle detection system, including: the device comprises a geomagnetic sensor, a receiver and an upper computer; wherein,
the geomagnetic sensor is used for detecting the magnetic field intensity above the strand and transmitting the magnetic field intensity to the receiver through a low-power consumption local area network wireless communication protocol;
the receiver is used for determining whether a vehicle exists above the track or not based on the magnetic field intensity received by two adjacent times, generating vehicle parking warning information when the vehicle exists above the track, and sending the vehicle parking warning information to the upper computer;
the upper computer is used for receiving the vehicle stop warning information and displaying the vehicle stop warning information;
wherein the geomagnetic sensor identifiers of each stock way are in one-to-one correspondence with the ports of the receiver;
the upper computer is specifically used for receiving the vehicle stop warning information and displaying the port number of the receiver for sending the vehicle stop warning information, the geomagnetic sensor identifier corresponding to the port number and the vehicle stop warning information.
In the above embodiment, the receiver is specifically configured to calculate a difference value of the magnetic field intensities acquired by the two adjacent times to obtain a magnetic field intensity difference value, and determine that a vehicle is above the track when the magnetic field intensity difference value exceeds a preset difference value, so as to generate a vehicle stop warning message.
In the foregoing embodiment, the receiver is specifically configured to send the vehicle parking warning information to the upper computer through the low power consumption lan wireless communication protocol.
In the above embodiment, the receiver is further configured to send the vehicle stop warning information to a digital quantity output device.
In the above embodiment, the upper computer is further configured to obtain the vehicle stop warning information through the digital quantity output device.
In the above embodiment, the receiver is further configured to send the magnetic field strength to a serial device when it is determined that there is a vehicle above the track.
In the above embodiment, the host computer is further configured to obtain the magnetic field strength from the serial device, and display the magnetic field strength.
In the above embodiment, the host computer is further configured to generate a parameter modification instruction of the geomagnetic sensor.
In the foregoing embodiment, the receiver is further configured to obtain the parameter modification instruction through the serial device.
In the above embodiment, the geomagnetic sensor is further configured to obtain the parameter modification instruction from the receiver through a low power consumption lan wireless communication protocol, and modify parameters based on the parameter modification instruction, where the parameters include a magnetic field strength detection range and a magnetic field strength detection frequency.
The present utility model provides a vehicle detection system including: the device comprises a geomagnetic sensor, a receiver and an upper computer; the geomagnetic sensor is used for detecting the magnetic field intensity above the strand and transmitting the magnetic field intensity to the receiver through a low-power-consumption local area network wireless communication protocol; the receiver is used for determining whether a vehicle exists above the track or not based on the magnetic field intensity received by two adjacent times, generating vehicle parking warning information when the vehicle exists above the track, and sending the vehicle parking warning information to the upper computer; the upper computer is used for receiving the vehicle stop warning information and displaying the vehicle stop warning information. Compared with the prior art, the vehicle detection system provided by the embodiment of the utility model can wirelessly transmit the magnetic field intensity above the track detected by the geomagnetic sensor to the receiver through a low-power local area network wireless communication protocol, the receiver automatically determines whether a vehicle exists above the track or not based on the magnetic field intensity received by two adjacent times, when the vehicle exists above the track, the vehicle parking warning information is generated and transmitted to the upper computer, and finally, the upper computer displays the vehicle parking warning information in real time.
Drawings
In order to more clearly illustrate the technical solutions of the embodiments of the present utility model, the drawings that are needed in the embodiments will be briefly described below, it being understood that the following drawings only illustrate some embodiments of the present utility model and therefore should not be considered as limiting the scope, and other related drawings may be obtained according to these drawings without inventive effort for a person skilled in the art.
FIG. 1 is a schematic diagram of a vehicle detection system according to an embodiment of the present utility model;
fig. 2 is another schematic structural diagram of a vehicle detection system according to an embodiment of the present utility model.
Detailed Description
The utility model is described in further detail below with reference to the drawings and examples. It is to be understood that the specific embodiments described herein are merely illustrative of the utility model and are not limiting thereof. It should be further noted that, for convenience of description, only some, but not all of the structures related to the present utility model are shown in the drawings.
Fig. 1 is a schematic structural diagram of a vehicle detection system according to an embodiment of the present utility model. As shown in fig. 1, the vehicle detection system provided by the present utility model includes: a geomagnetic sensor 110, a receiver 120, and an upper computer 130; the geomagnetic sensor 110 is configured to detect a magnetic field intensity above a track, and send the magnetic field intensity to the receiver 120 through a low power consumption local area network wireless communication protocol (low), and send the magnetic field intensity to the receiver 120; the receiver 120 is configured to determine whether a vehicle is above the track based on the magnetic field intensities received in two adjacent times, generate a vehicle stop warning message when it is determined that the vehicle is above the track, and send the vehicle stop warning message to the upper computer 130; the upper computer 130 is configured to receive the vehicle stop warning information and display the vehicle stop warning information.
The geomagnetic sensor 110 has high sensitivity, long service life and stable signals, and in practical application, the geomagnetic sensor 110 can be installed at the middle position of a stock road without cabling, after the geomagnetic sensor 110 is installed, a technician is not required to debug, the geomagnetic sensor is convenient to use, and the detection cost of vehicle detection is saved. When the geomagnetic sensor 110 is actually installed, the vehicle above the track can be emptied in advance, the preset time is waited for, and the use of the geomagnetic sensor 110 to detect the magnetic field intensity above the track is restarted, wherein the preset time can be understood as the automatic reset time of the geomagnetic sensor 110, and if the magnetic field interference exists in the preset time, the automatic reset time of the geomagnetic sensor 110 can be automatically delayed from the time of the magnetic field interference, and the reset parameter can be automatically calculated and updated.
The receiver 120 may be placed indoors, and the antenna of the receiver 120 may be installed at a position more than a preset distance from the receiver 120, wherein the preset distance may be 3 meters, which may facilitate the transmission of radio waves. Alternatively, if the antenna of the receiver 120 cannot be installed at a position more than a preset distance from the receiver 120, the distance between the receiver 120 and the geomagnetic sensor 110 may be reduced until the wireless communication between the receiver 120 and the geomagnetic sensor 110 is normal.
The vehicle stop warning information may be understood as a digital output warning information output by the receiver 120 when there is a vehicle stop above the track, for example, the vehicle stop warning information is "1" indicating that there is a vehicle stop above the track, and the vehicle stop warning information is "0" indicating that there is no vehicle stop above the track.
The LORA may be understood as a low-power local area network wireless standard, and may travel farther than other wireless modes under the same power consumption condition, so that in the vehicle detection system provided by the embodiment of the present utility model, the purpose that the geomagnetic sensor 110 transmits the magnetic field strength to the receiver 120 with low power consumption is achieved.
In practical applications, if no vehicle passes over the track, the magnetic field intensity above the track detected by the geomagnetic sensor 110 is fixed, so that whether the vehicle passes over the track can be determined according to the magnitude of the magnetic field intensity above the track. In an alternative embodiment, the geomagnetic sensor 110 installed on the track detects the magnetic field intensity above the track in real time, and then the geomagnetic sensor 110 sends the detected magnetic field intensity to the receiver 120 through a low-power consumption local area network wireless communication protocol, and as the installation methods of the geomagnetic sensor 110 and the receiver 120 are simple, manual field debugging is not needed, the time cost of field debugging of technicians is saved, manual cable laying and civil construction are not needed, a large amount of labor cost is saved, and the problems of high construction difficulty and high construction risk in cable laying and civil construction are solved; after receiving the magnetic field intensity, the receiver 120 can determine whether the magnitude of the magnetic field intensity above the track is changed according to the magnitude of the magnetic field intensity received by two adjacent times; if the receiver 120 determines that there is a change in the magnitude of the magnetic field strength above the track, the receiver 120 may determine that there is a vehicle above the track, generate vehicle stop information, and send vehicle stop warning information to the host computer 130.
After the host computer 130 receives the vehicle parking warning information, since the identifier of the geomagnetic sensor 110 of each track corresponds to the port of the receiver 120 one by one, optionally, in a specific embodiment of the present utility model, the host computer 130 may display the port number of the receiver 120 that sends the vehicle parking warning information, the identifier of the geomagnetic sensor 110 corresponding to the port number, and the vehicle parking warning information, so that a technician can timely determine the track identifier of the parked vehicle corresponding to the identifier of the geomagnetic sensor 110 according to the port number, the identifier of the geomagnetic sensor 110, and the vehicle parking warning information, and further, the technician can determine the track identifier of the non-parked vehicle according to the track identifier of the parked vehicle, thereby grasping the vehicle parking situation of all tracks in real time; in addition, the geomagnetic sensor 110, the receiver 120 and the upper computer 130 achieve the purpose of vehicle detection in a wireless communication mode while saving labor cost and time cost, so that the flexibility and convenience of vehicle detection are improved, and the detection efficiency and speed of vehicle detection are improved. The identification of the geomagnetic sensor 110 can be understood as the number of the geomagnetic sensor 110; the track identity may be understood as the number of the track.
For example, the geomagnetic sensor 110 installed on the track detects the magnetic field intensity above the track 1 in real time to obtain the magnetic field intensity a and the magnetic field intensity B, wherein a is smaller than B, the port number for transmitting the vehicle stop warning information is "1", and the port number of the receiver 120 corresponding to the geomagnetic sensor 110 is "1"; the geomagnetic sensor 110 then transmits the detected magnetic field strength to the receiver 120 at a transmission frequency of 433MHZ through a low power consumption lan wireless communication protocol; after the receiver 120 receives the magnetic field intensity, the receiver 120 can determine that the magnetic field intensity above the track changes according to the intensity of the magnetic field received by two adjacent times, the receiver 120 determines that a vehicle is above the track, generates vehicle parking information, and sends vehicle parking warning information '1' to the upper computer 130; after the upper computer 130 receives the vehicle stop warning information, the upper computer 130 may display the port number "1" of the receiver 120 that sends the vehicle stop warning information, the identifier 1 of the geomagnetic sensor 110 corresponding to the port number, and the vehicle stop warning information "1", so that a technician may determine, in time, that the station identifier 1 of the stopped vehicle corresponding to the identifier of the geomagnetic sensor 110 determines that the station identifier "1" has stopped on the station, or may determine that the station identifier "1" has passed vehicles on the station.
The vehicle detection system provided by the embodiment of the utility model comprises: the device comprises a geomagnetic sensor, a receiver and an upper computer; the geomagnetic sensor is used for detecting the magnetic field intensity above the strand and transmitting the magnetic field intensity to the receiver through a low-power-consumption local area network wireless communication protocol; the receiver is used for determining whether a vehicle exists above the track or not based on the magnetic field intensity received by two adjacent times, generating vehicle parking warning information when the vehicle exists above the track, and sending the vehicle parking warning information to the upper computer; the upper computer is used for receiving the vehicle stop warning information and displaying the vehicle stop warning information. Compared with the prior art, the vehicle detection system provided by the embodiment of the utility model can wirelessly transmit the magnetic field intensity above the track detected by the geomagnetic sensor to the receiver through a low-power local area network wireless communication protocol, the receiver automatically determines whether a vehicle exists above the track or not based on the magnetic field intensity received by two adjacent times, when the vehicle exists above the track, the vehicle parking warning information is generated and transmitted to the upper computer, and finally, the upper computer displays the vehicle parking warning information in real time.
In a specific embodiment of the present utility model, the receiver 120 is specifically configured to calculate a difference between the magnetic field intensities acquired in two adjacent times to obtain a magnetic field intensity difference, and determine that a vehicle is above the track when the magnetic field intensity difference exceeds a preset difference, so as to generate a vehicle stop warning message.
The magnetic field strength difference may be understood as the difference between the magnetic field strengths acquired by the receiver 120 two adjacent times; the preset difference may be understood as a critical value of the difference between the magnetic field strengths acquired by the receiver 120 two adjacent times. When the difference in magnetic field strength exceeds the preset difference, the receiver 120 determines that a vehicle is located above the track; when the difference in magnetic field strength does not exceed the preset difference, the receiver 120 determines that no vehicle is parked over the track.
For example, the magnetic field strength acquired by the receiver 120 two adjacent times is a magnetic field strength a and a magnetic field strength B, the preset difference is s, wherein the difference between the magnetic field strength a and the magnetic field strength B is C, that is, the magnetic field strength difference is C, and if C is greater than s, the receiver 120 determines that there is a vehicle above the track, and generates a vehicle stop warning message "1".
In a specific embodiment of the present utility model, the receiver 120 is specifically configured to send the vehicle stop warning information to the upper computer 130 through a low-power lan wireless communication protocol, so that communication between the receiver 120 and the upper computer 130 can be performed through a wireless communication manner, no cabling is required between the receiver 120 and the upper computer 130, a wired communication manner is established, no technician is required to debug the wired communication manner between the receiver 120 and the upper computer 130, labor cost and time cost are saved, and communication efficiency and speed between the receiver 120 and the upper computer 130 are improved.
In a specific embodiment of the present utility model, the receiver 120 is further configured to send a vehicle stop warning message to the digital quantity output device.
A digital quantity output device may be understood as a port that outputs a digital signal, wherein the digital signal may include "0" and "1".
In an alternative embodiment, the receiver 120 may send a vehicle warning message to the digital quantity output device upon determining that there is a vehicle over the track.
For example, the receiver 120 may send a vehicle warning message "1" to the digital quantity output device upon determining that there is a vehicle above the track.
In the embodiment of the present utility model, the upper computer 130 is further configured to obtain the vehicle stop warning information through the digital output device.
For example, the upper computer 130 may acquire the vehicle warning information "1" through the digital quantity output device, and transmit the vehicle warning information "1" to the port lamp of the receiver 120 through the digital quantity output device; the port lamp flashes red to give an alarm for vehicle stop.
Alternatively, in an embodiment of the present utility model, if the receiver 120 determines that there is no vehicle above the track, the receiver 120 may generate no-vehicle-stop information and send the no-vehicle-stop information to the digital quantity output device; the digital quantity output device acquires the no-vehicle parking information '0', and sends the no-vehicle parking information '0' to the port lamp; the port lamp blinks green to carry out vehicle stop-free prompt.
In a specific embodiment of the utility model, the receiver 120 is further configured to send the magnetic field strength to the serial device when it is determined that there is a vehicle above the track.
The serial device may be understood as a port that outputs the magnetic field intensity detected by the geomagnetic sensor 110.
Fig. 2 is a schematic diagram of another structure of a vehicle detection system according to an embodiment of the present utility model, and as shown in fig. 2, a receiver 120 and a plurality of geomagnetic sensors 110 are connected by a low power consumption lan wireless communication protocol with a transmission frequency of 433 MHZ.
The receiver 120 transmits the magnetic field strength a and the magnetic field strength B to the serial device when it is determined that there is a vehicle above the track based on the magnetic field strengths detected by the geomagnetic sensors 110 received two adjacent times.
In an embodiment of the present utility model, the upper computer 130 is further configured to obtain the magnetic field strength from the serial device, and display the magnetic field strength.
Illustratively, the receiver 120 sends the magnetic field strength a and the magnetic field strength B to the serial device upon determining that there is a vehicle over the track; the upper computer 130 may acquire the magnetic field strength a and the magnetic field strength B from the serial device and display the magnetic field strength a and the magnetic field strength B.
In an embodiment of the present utility model, the upper computer 130 is further configured to generate a parameter modification instruction of the geomagnetic sensor 110.
The parameter modification instruction may be understood as an instruction generated by the host computer 130 to modify a parameter when the geomagnetic sensor 110 detects the magnetic field strength. The parameters may include a magnetic field strength detection frequency and a magnetic field strength detection range of the geomagnetic sensor 110. In practical applications, the magnetic field strength detection frequency may be 50HZ, and the magnetic field strength detection range may be 2 gauss.
For example, the upper computer 130 may generate a parameter modification instruction of the magnetic field strength detection frequency of the geomagnetic sensor 110.
In a specific embodiment of the present utility model, the receiver 120 is further configured to obtain the parameter modification instruction through the serial device.
The serial device can also be used for outputting parameter modification instructions.
In an alternative embodiment, after the upper computer 130 generates the parameter modification instruction of the geomagnetic sensor 110, the upper computer 130 may send the parameter modification instruction to the serial port device through the low power consumption lan wireless communication protocol; the receiver 120 may then obtain parameter modification instructions for the magnetic field strength detection frequency via the serial device.
For example, after the upper computer 130 generates the parameter modification instruction of the magnetic field intensity detection frequency of the geomagnetic sensor 110, the upper computer 130 may send the parameter modification instruction of the magnetic field intensity detection frequency to the serial port device through the low power consumption lan wireless communication protocol; the receiver 120 may then obtain parameter modification instructions for the magnetic field strength detection frequency via the serial device.
In an embodiment of the present utility model, the geomagnetic sensor 110 is further configured to obtain a parameter modification instruction from the receiver 120 through a low power consumption lan wireless communication protocol, and modify a parameter based on the parameter modification instruction.
In an alternative embodiment, each geomagnetic sensor 110 corresponds to different port numbers of the receiver 120, one port number corresponds to one port of the receiver 120, the geomagnetic sensor 110 can obtain a parameter modification instruction from the corresponding port of the receiver 120 through a low-power local area network wireless communication protocol, and modify parameters based on the parameter modification instruction, so that parameters of the geomagnetic sensor 110 can be modified in real time according to actual vehicle detection requirements in the vehicle detection process, flexibility and convenience of a vehicle detection system are improved, and detection efficiency and speed of the vehicle detection system are improved.
By way of example, assuming that the port number of the receiver 120 corresponding to the geomagnetic sensor 110 is 1, the current magnetic field strength detection frequency of the geomagnetic sensor 110 is 49HZ; the geomagnetic sensor 110 may acquire a parameter modification instruction of the magnetic field intensity detection frequency from a port with a port number of 1 of the receiver 120 through a low power consumption lan wireless communication protocol; the geomagnetic sensor 110 then modifies the current magnetic field strength detection frequency 49HZ to 50HZ based on the parameter modification instruction of the magnetic field strength detection frequency.
Optionally, in an embodiment of the present utility model, the upper computer 130 may be further configured to generate a port number modification instruction of the geomagnetic sensor 110, where the port number modification instruction may include a current port number, an updated port number, and an identifier of the geomagnetic sensor 110.
In table 1, the port number information table of the receiver 120 provided in the embodiment of the present utility model, as shown in table 1, the receiver 120 may include a plurality of ports, each port has a corresponding port number, and each port number corresponds to an identifier of the geomagnetic sensor 110.
TABLE 1 Port number information Table
For example, assuming that the current port number of the receiver 120 corresponding to the identification of the geomagnetic sensor 110 is "1", the current port number "1" of the receiver 120 corresponding to the identification of the magnetic sensor 110 needs to be modified to update the port number "2"; the upper computer 130 may generate a port number modification instruction of the geomagnetic sensor 110, where the port number modification instruction may include the current port number, the updated port number, and the identifier of the geomagnetic sensor 110, so that if the port number corresponding to the geomagnetic sensor 110 needs to be updated in the process of vehicle detection, the port number of the receiver 120 corresponding to the identifier of the geomagnetic sensor 110 may be modified in time, thereby increasing flexibility and convenience of a vehicle detection system.
Optionally, in an embodiment of the present utility model, the receiver 120 is further configured to obtain a port number modification instruction through the serial port device.
In an alternative embodiment, after the upper computer 130 generates the port number modification instruction of the geomagnetic sensor 110, the upper computer 130 may send the port number modification instruction to the serial port device through the low power consumption lan wireless communication protocol; the receiver 120 may obtain the port number modification instruction through the serial device.
Optionally, in an embodiment of the present utility model, the receiver 120 is further configured to modify a port number corresponding to the identifier of the geomagnetic sensor 110 based on the port number modification instruction.
In an alternative embodiment, the receiver 120 may modify the current port number of the receiver 120 corresponding to the identification of the geomagnetic sensor 110 to an updated port number according to the current port number, the updated port number, and the identification of the geomagnetic sensor 110 in the port number modification instruction.
For example, assuming that the current port number is "1", the update port number is "2", the identifier of the geomagnetic sensor 110 is 1, the receiver 120 may modify the current port number "1" of the receiver 120 corresponding to the identifier 1 of the geomagnetic sensor 110 to the update port number "2" according to the current port number, the update port number, and the identifier of the geomagnetic sensor 110 in the port number modification instruction.
The vehicle detection system provided by the embodiment of the utility model comprises: the device comprises a geomagnetic sensor, a receiver and an upper computer; the geomagnetic sensor is used for detecting the magnetic field intensity above the strand and transmitting the magnetic field intensity to the receiver through a low-power-consumption local area network wireless communication protocol; the receiver is used for determining whether a vehicle exists above the track or not based on the magnetic field intensity received by two adjacent times, generating vehicle parking warning information when the vehicle exists above the track, and sending the vehicle parking warning information to the upper computer; the upper computer is used for receiving the vehicle stop warning information and displaying the vehicle stop warning information. Compared with the prior art, the vehicle detection system provided by the embodiment of the utility model can wirelessly transmit the magnetic field intensity above the track detected by the geomagnetic sensor to the receiver through a low-power local area network wireless communication protocol, the receiver automatically determines whether a vehicle exists above the track or not based on the magnetic field intensity received by two adjacent times, when the vehicle exists above the track, the vehicle parking warning information is generated and transmitted to the upper computer, and finally, the upper computer displays the vehicle parking warning information in real time.
Note that the above is only a preferred embodiment of the present utility model and the technical principle applied. It will be understood by those skilled in the art that the present utility model is not limited to the particular embodiments described herein, but is capable of various obvious changes, rearrangements and substitutions as will now become apparent to those skilled in the art without departing from the scope of the utility model. Therefore, while the utility model has been described in connection with the above embodiments, the utility model is not limited to the embodiments, but may be embodied in many other equivalent forms without departing from the spirit or scope of the utility model, which is set forth in the following claims.
Claims (10)
1. A vehicle detection system, the system comprising: the device comprises a geomagnetic sensor, a receiver and an upper computer; wherein,
the geomagnetic sensor is used for detecting the magnetic field intensity above the strand and transmitting the magnetic field intensity to the receiver through a low-power consumption local area network wireless communication protocol;
the receiver is used for determining whether a vehicle exists above the track or not based on the magnetic field intensity received by two adjacent times, generating vehicle parking warning information when the vehicle exists above the track, and sending the vehicle parking warning information to the upper computer;
the upper computer is used for receiving the vehicle stop warning information and displaying the vehicle stop warning information;
wherein the geomagnetic sensor identifiers of each stock way are in one-to-one correspondence with the ports of the receiver;
the upper computer is specifically used for receiving the vehicle stop warning information and displaying the port number of the receiver for sending the vehicle stop warning information, the geomagnetic sensor identifier corresponding to the port number and the vehicle stop warning information.
2. The system of claim 1, wherein the receiver is specifically configured to calculate a difference between the magnetic field strengths obtained from the two adjacent magnetic fields to obtain a magnetic field strength difference, and determine that a vehicle is above the track when the magnetic field strength difference exceeds a preset difference, and generate a vehicle stop warning message.
3. The system of claim 1, wherein the receiver is configured to send the vehicle stop warning message to the host computer via the low power lan wireless communication protocol.
4. The system of claim 1, wherein the receiver is further configured to send the vehicle stop warning message to a digital quantity output device.
5. The system of claim 4, wherein the host computer is further configured to obtain the vehicle stop warning information via the digital quantity output device.
6. The system of claim 1, wherein the receiver is further configured to send the magnetic field strength to a serial device upon determining that a vehicle is over the track.
7. The system of claim 6, wherein the host computer is further configured to obtain the magnetic field strength from the serial device and display the magnetic field strength.
8. The system of claim 6, wherein the host computer is further configured to generate a parameter modification instruction for the geomagnetic sensor.
9. The system of claim 8, wherein the receiver is further configured to obtain the parameter modification instruction through the serial device.
10. The system of claim 9, wherein the geomagnetic sensor is further configured to obtain the parameter modification instruction from the receiver via a low power consumption local area network wireless communication protocol, and modify a parameter based on the parameter modification instruction, the parameter including a magnetic field strength detection range and a magnetic field strength detection frequency.
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| CN202320645277.4U CN220535654U (en) | 2023-03-24 | 2023-03-24 | Vehicle detection system |
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| CN202320645277.4U CN220535654U (en) | 2023-03-24 | 2023-03-24 | Vehicle detection system |
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