CN214084274U - Wireless wheel sensor - Google Patents
Wireless wheel sensor Download PDFInfo
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- CN214084274U CN214084274U CN202022768857.1U CN202022768857U CN214084274U CN 214084274 U CN214084274 U CN 214084274U CN 202022768857 U CN202022768857 U CN 202022768857U CN 214084274 U CN214084274 U CN 214084274U
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Abstract
The utility model discloses a wireless wheel sensor for set up on the train track, including magnetic induction unit, collection processing unit, the control unit, wireless transmission unit and radio frequency switch unit, the magnetic induction unit is connected with collection processing unit, and wireless transmission unit is connected with the radio frequency switch unit electricity, and radio frequency switch unit and peripheral external equipment wireless connection, collection processing unit, wireless transmission unit, radio frequency switch unit are connected with the control unit electricity respectively. When a train passes by, the wheel rim passes through the magnetic induction unit to cause the magnetic field change so as to generate a voltage signal, the voltage signal is processed and shaped into a pulse signal by the acquisition and processing unit and is sent to the control unit, the train passing information is converted into a radio frequency signal by the wireless transmission unit and is sent to the radio frequency switch unit, and then the radio frequency signal is wirelessly transmitted to peripheral external equipment or received, and the radio signal sent by the peripheral external equipment is analyzed and sent to the control unit. The wireless signal transmission can be realized with peripheral external equipment, and cables do not need to be laid.
Description
Technical Field
The utility model relates to a wheel sensor technical field, concretely relates to wireless wheel sensor.
Background
The traditional wheel sensor is generally clamped on a steel rail and used for acquiring wheel information when a train passes through and being connected with external equipment through a cable so as to realize power supply and signal output.
Most of the existing wheel sensors are in wired transmission, and cables need to be laid between a detection station and a sensor mounting point to mount a junction box. If meet special highway section during the construction, for example when filling up positions such as road bed, bridge, can't excavate the cable pit, need establish the protective tube on the cable, not only the installation is complicated, and the cable is destroyed easily moreover.
SUMMERY OF THE UTILITY MODEL
For solving the technical defect, the utility model discloses a technical scheme lie in, provide wireless wheel sensor for the setting is on the train track, including magnetic induction unit, collection processing unit, the control unit, wireless transmission unit and radio frequency switch unit, the magnetic induction unit is connected with the collection processing unit, wireless transmission unit is connected with the radio frequency switch unit electricity, radio frequency switch unit and peripheral external equipment wireless connection, collection processing unit, wireless transmission unit, radio frequency switch unit are connected with the control unit electricity respectively.
The magnetic induction unit is used for generating a magnetic field, and when the wheel rim passes by, the magnetic field changes to generate a voltage signal and send the voltage signal to the acquisition processing unit; the acquisition processing unit is used for receiving the voltage signal, processing and shaping the voltage signal into a pulse signal and sending the pulse signal to the control unit; the control unit is used for judging the information that the train passes; the wireless transmission unit is used for converting the judged information into a radio frequency signal and sending the radio frequency signal to the radio frequency switch unit, and the radio frequency switch unit is used for wirelessly transmitting the radio frequency signal to peripheral external equipment or receiving the radio signal sent by the peripheral external equipment, analyzing the radio signal and sending the radio signal to the control unit.
Furthermore, the magnetic induction units are at least provided with two groups.
Furthermore, the radio frequency switch unit is electrically connected with the antenna through the radio frequency cable, and the antenna is wirelessly connected with peripheral external equipment.
Further, the solar energy power generation device further comprises a solar panel and an energy storage device which are used for supplying power.
Further, the antenna also comprises a shell, and the antenna is arranged in the shell and is not limited to be packaged in the shell.
Furthermore, a plurality of partition plates are arranged in the shell to divide the shell into at least three mounting areas.
Compared with the prior art the utility model discloses technical scheme's beneficial effect does:
the utility model provides a wireless wheel sensor, the train passes through the time, and the wheel rim arouses magnetic field variation in order to produce voltage signal through magnetic induction unit, and voltage signal handles the plastic through the acquisition and processing unit and sends for the control unit for pulse signal, changes the information of train process into radio frequency signal through wireless transmission unit and sends for the radio frequency switch unit, then wireless transmission gives peripheral external equipment. The integrated all units together, simple to operate can realize wireless signal transmission with peripheral external equipment, need not to lay communication cable, has reduced construction cost, convenient maintenance, and transmission distance is far away.
Drawings
In order to more clearly illustrate the technical solutions in the embodiments of the present invention, the drawings needed to be used in the description of the embodiments will be briefly described below, and it is obvious that the drawings in the following description are only some embodiments of the present invention, and it is obvious for those skilled in the art to obtain other drawings without creative efforts.
Fig. 1 is a schematic block diagram of a wireless wheel sensor according to an embodiment of the present invention;
fig. 2 is a schematic block diagram of a power supply unit according to an embodiment of the present invention;
fig. 3 is a schematic structural diagram of a wireless wheel sensor mounted on a train track according to an embodiment of the present invention;
fig. 4 is an exploded view of a housing according to an embodiment of the present invention;
fig. 5 is a schematic circuit diagram of a control unit and an indicator light unit provided in an embodiment of the present invention;
fig. 6 is a schematic circuit diagram of a connection between a wireless transmission unit and a radio frequency switch unit provided in the embodiment of the present invention;
fig. 7 is a schematic circuit diagram of an acquisition processing unit according to an embodiment of the present invention;
fig. 8 is a schematic circuit diagram of a power supply unit according to an embodiment of the present invention.
The reference numbers are as follows:
100. wireless wheel sensor, 1, train track, 2, magnetic induction unit, 3, gather the processing unit, 4, the control unit, 5, wireless transmission unit, 6, the radio frequency switch unit, 7, the radio frequency cable, 8, the antenna, 9, solar cell panel, 10, energy memory, 11, the casing, 11a, the opening, 11b, the constant head tank, 12, the baffle, 13, charging circuit, 14, constant voltage power supply, 15, pilot lamp unit, 16, the interface of burning record, 17, the apron, 18, the strengthening rib.
Detailed Description
The invention will be further explained with reference to the drawings and the specific embodiments.
Example 1
Referring to fig. 1-8, the utility model provides a wireless wheel sensor, wireless wheel sensor 100 set up the inboard at train track 1, including magnetic induction unit 2, acquisition and processing unit 3, the control unit 4, wireless transmission unit 5 and radio frequency switch unit 6, magnetic induction unit 2 is connected with acquisition and processing unit 3, wireless transmission unit 5 is connected with radio frequency switch unit 6 electricity, radio frequency switch unit 6 and peripheral external equipment wireless connection, acquisition and processing unit 3, wireless transmission unit 5, radio frequency switch unit 6 are connected with the control unit 4 electricity respectively.
The magnetic induction unit 2 is used for generating a magnetic field, and the magnetic field changes when the wheel rim passes by so as to generate a voltage signal and send the voltage signal to the acquisition processing unit 3; the acquisition processing unit 3 is used for receiving the voltage signal, processing and shaping the voltage signal into a pulse signal and sending the pulse signal to the control unit 4; the control unit 4 is used for judging the information that the train passes through; the wireless transmission unit 5 is used for converting the judged information into a radio frequency signal and sending the radio frequency signal to the radio frequency switch unit 6; and the radio frequency switch unit 6 is used for wirelessly transmitting the radio frequency signal to peripheral external equipment or receiving the wireless signal sent by the peripheral external equipment, analyzing the radio frequency signal and sending the analyzed radio frequency signal to the control unit 4.
Specifically, the wireless transmission unit 5 is a LORA wireless module. The control unit 3 is responsible for judging train approaching information, managing the power supply unit and managing and monitoring the operation of the wireless transmission unit 5 and each unit, can regularly detect the performance of the wireless wheel sensor 100, automatically reports problems to peripheral external equipment, does not need manual maintenance, and has strong reliability.
Preferably, the radio frequency switch unit further comprises a radio frequency cable 7 and an antenna 8, the radio frequency switch unit 6 is electrically connected with the antenna 8 through the radio frequency cable 7, and the antenna 8 is wirelessly connected with peripheral external equipment.
The control unit 4 and the wireless transmission unit 5 are in a dormant state and a working state, and when no wheel passing signal exists, the control unit 4 and the wireless transmission unit 5 are in a power-off dormant state, so that energy consumption is reduced. When the train passes, the magnetic induction unit 2 sends out an induction signal and sequentially wakes up the control unit 4 and the wireless transmission unit 5 to wirelessly transmit the information of the passing train to peripheral external equipment. The system can be widely applied to automatic identification equipment of the railway vehicle number, 5T equipment of the railway vehicle, a track scale, overload and unbalance loading, cargo inspection, early warning of coming vehicles and the like.
In order to improve the detection precision of train passing, specifically, magnetic induction unit 2 is equipped with two sets at least at the interval, and magnetic induction unit 2 comprises the strong magnet and the coil of winding on the strong magnet, and the coil is connected with acquisition and processing unit 3 electricity.
Preferably, the wireless transmission device further comprises a power supply unit for supplying power, the power supply unit comprises a solar cell panel 9, a charging circuit 13, a stabilized voltage power supply 14 and an energy storage device 10, the solar cell panel 9 is electrically connected with the charging circuit 13, the stabilized voltage power supply 14 is electrically connected between the energy storage device 10 and the charging circuit 13, and the stabilized voltage power supply 14 is electrically connected with the wireless transmission unit 5 and the control unit 4 respectively. The solar cell panel 9 is adopted to charge the energy storage device 10, so that the service life of the sensor is prolonged, and the difficulty of equipment installation and maintenance is greatly simplified. Wherein energy storage device 10 is a lithium battery.
Preferably, the device further comprises an indicator light unit 15 for prompting the working state of the detection device, and the indicator light unit 15 is electrically connected with the regulated power supply 14 and the control unit 4 respectively. The recording interface 16 is respectively electrically connected with the voltage-stabilized power supply 14 and the control unit 4, so that the program of the sensor can be updated in real time conveniently, and the practicability of the sensor is improved.
Preferably, a housing 11 is further included, and the antenna 8 is mounted in the housing 11 and may be disposed outside the housing 11. The housing 11 is mounted inside the train track 1 by means of a mounting. The magnetic induction unit 2 and the acquisition processing unit 3 are installed on a first circuit board, the control unit 4 is installed on a second circuit board, the wireless transmission unit 5, the radio frequency switch unit 6 and the radio frequency cable 7 are installed on a third circuit board, the first circuit board, the second circuit board and the third circuit board are all installed in the shell 11, the antenna 8 is installed on the outer wall of the shell 11, the shell 11 is provided with an opening 11a, and the opening 11a is provided with a cover plate 17. The second circuit board is electrically connected with the other two circuit boards by adopting connecting wires respectively.
Preferably, a plurality of partition boards 12 are arranged in the shell 11 to divide the shell into at least three mounting areas.
Specifically, two partition plates 12 are arranged in the shell 11 to sequentially divide the shell into three mounting areas, namely a control cabin, a signal acquisition cabin and a wireless transmission cabin, and the first circuit board, the second circuit board and the third circuit board are respectively and correspondingly mounted in the mounting areas one by one. The height of one of the partition boards 12 is greater than that of the other partition board 12, and a wire clamping groove for clamping a connecting wire is formed in the top of one of the partition boards 12. The housing 11 is provided with a positioning groove 11b surrounding the opening 11a, and the cover plate 17 is fittingly mounted on the positioning groove 11 b.
In order to enhance the structural strength of the housing 11, the housing 11 is provided with a reinforcing rib 18. Still be equipped with pilot lamp mounting hole and interface mounting hole on casing 11, can dismantle on the interface mounting hole and be equipped with the stopper that shelters from, the inside and outside water repellent of casing 11. The bottom, side walls and top of the housing 11 are provided with shock absorbing pads.
As shown in fig. 5-8, U1 is a control unit 4, Y1 is a crystal oscillator of the control unit, U2 is a lithium battery charging management chip, U3 is a voltage stabilization chip, U4 is a radio frequency switch unit 6, U5 is a wireless transmission unit 5, Y2 is a crystal oscillator of the wireless transmission unit, LED3 is an indicator light unit 15, P1 is a burning interface 16, J1 is an interface connected with a solar cell panel 9, J2 is a signal acquisition interface connected with an induction coil, J3 is an interface connected with a lithium battery, and J4 is a radio frequency cable 7.
It is above only the utility model discloses a preferred embodiment, the utility model discloses a scope of protection does not only confine above-mentioned embodiment, the all belongs to the utility model discloses a technical scheme under the thinking all belongs to the utility model discloses a scope of protection. It should be noted that, for those skilled in the art, various modifications and decorations can be made without departing from the principle of the present invention, and these modifications and decorations should also be regarded as the protection scope of the present invention.
Claims (6)
1. A wireless wheel sensor for placement on a train track (1), characterized by: the magnetic induction monitoring system comprises a magnetic induction unit (2), a collection processing unit (3), a control unit (4), a wireless transmission unit (5) and a radio frequency switch unit (6), wherein the magnetic induction unit (2) is connected with the collection processing unit (3), the wireless transmission unit (5) is electrically connected with the radio frequency switch unit (6), the radio frequency switch unit (6) is wirelessly connected with peripheral external equipment, and the collection processing unit (3), the wireless transmission unit (5) and the radio frequency switch unit (6) are respectively electrically connected with the control unit (4);
the magnetic induction unit (2) is used for generating a magnetic field, and the magnetic field changes when the wheel rim passes by so as to generate a voltage signal and send the voltage signal to the acquisition processing unit (3); the acquisition processing unit (3) is used for receiving the voltage signal, processing and shaping the voltage signal into a pulse signal and sending the pulse signal to the control unit (4); the control unit (4) is used for judging the information that the train passes; the wireless transmission unit (5) is used for converting the judged information into a radio frequency signal and sending the radio frequency signal to the radio frequency switch unit (6); and the radio frequency switch unit (6) is used for wirelessly transmitting radio frequency signals to peripheral external equipment or receiving wireless signals sent by the peripheral external equipment, analyzing the signals and sending the analyzed signals to the control unit (4).
2. The wireless wheel sensor of claim 1, wherein: the magnetic induction units (2) are at least provided with two groups.
3. The wireless wheel sensor of claim 1 or 2, wherein: the radio frequency switch unit is characterized by further comprising a radio frequency cable (7) and an antenna (8), the radio frequency switch unit (6) is electrically connected with the antenna (8) through the radio frequency cable (7), and the antenna (8) is in wireless connection with peripheral external equipment.
4. The wireless wheel sensor of claim 1 or 2, wherein: the solar energy power generation device further comprises a solar panel (9) and an energy storage device (10) which are used for supplying power.
5. The wireless wheel sensor of claim 3, wherein: the antenna also comprises a shell (11), and the antenna (8) is installed in the shell (11) and is not limited to be packaged in the shell (11).
6. The wireless wheel sensor of claim 5, wherein: the shell (11) is internally provided with a plurality of clapboards (12) which divide the shell into at least three mounting areas.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202022768857.1U CN214084274U (en) | 2020-11-25 | 2020-11-25 | Wireless wheel sensor |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202022768857.1U CN214084274U (en) | 2020-11-25 | 2020-11-25 | Wireless wheel sensor |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN214084274U true CN214084274U (en) | 2021-08-31 |
Family
ID=77452972
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202022768857.1U Active CN214084274U (en) | 2020-11-25 | 2020-11-25 | Wireless wheel sensor |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN214084274U (en) |
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2020
- 2020-11-25 CN CN202022768857.1U patent/CN214084274U/en active Active
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