Railway train number electronic tag ground identification device

Abstract

The utility model discloses a railway train number electronic tag ground identification device which comprises an acquisition device and a wireless access device. The acquisition equipment comprises a wireless wheel sensor and integrated train number host equipment, and the wireless wheel sensor can be in direct communication or in cascade connection with the wireless access device through a rail side line concentration box and is used for detecting and acquiring train passing axle data; and the integrated train number host equipment is in communication connection with the wireless access device and is used for acquiring the train number electronic tag information of the railway rolling stock and decoding and analyzing the information. The overall size of the railway train number electronic tag ground identification device is reduced, the equipment installation and maintenance cost is reduced, and the railway train number electronic tag ground identification device is suitable for large-area laying.

Description

TECHNICAL FIELD

[0001] The utility model relates to railway vehicle car number automatic identification field, concretely is a railway car number electronic tag ground identification device. BACKGROUND

[0002] At present, railway car number electronic tag identification technology is widely used in railway main line and vehicle factory section, marshalling yard, repair shop and other places. However, due to the large size and low integration of the existing railway car number electronic tag ground identification device, the host device of the device needs to be installed separately in the track side machine room or the outdoor cabinet of the concrete pouring base, and a large number of power and communication construction are needed to support the installation and construction of the device. The long construction period, high construction cost, maintenance difficulty and high construction cost lead to many disadvantages. Therefore, the high integration and miniaturization of railway car number electronic tag identification equipment is the development trend at present. In order to realize high integration and miniaturization, a railway car number electronic tag identification device needs to be designed. SUMMARY

[0003] The technical problem solved by the utility model mainly lies in that the existing railway car number electronic tag ground identification device has the problems of large size, low integration, high construction and maintenance cost. In view of the above defects of the prior art, the utility model provides a railway car number electronic tag ground identification device.

[0004] In order to achieve the above purpose, the utility model provides a railway car number electronic tag ground identification device, which comprises: a collection device and a wireless access device in communication connection with the collection device; the collection device comprises:

[0005] The wireless wheel sensor is directly connected in communication or connected in cascade with the wireless access device through the track side concentrator box, is used for detecting and collecting train axle data, and sends a start / stop signal;

[0006] The integrated car number host device is in communication connection with the wireless access device, is used for receiving the start / stop signal, activating / closing the collection of railway locomotive and vehicle car number electronic tag information, and performing decoding and analysis processing.

[0007] In the utility model embodiment, the integrated car number host device further comprises a power supply device, the power supply device receives the start / stop signal through the track side concentrator box, supplies power for the integrated car number host and transmits the locomotive and vehicle electronic tag information.

[0008] In the utility model embodiment, the wireless wheel sensor comprises:

[0009] The first wheel sensor and the second wheel sensor are used for collecting train axle data.

[0010] The lightning protection and magnetic steel signal conditioning circuit is connected with the first wheel sensor and the second wheel sensor, is used for bearing the switching magnetic steel, and outputs the wake-up signal and the on / off signal when the vehicle passes through the magnetic steel signal conditioning circuit;

[0011] The digital signal processing circuit is connected with the lightning protection and magnetic steel signal conditioning circuit, is used for receiving the wake-up signal, recording and transmitting the time axis information passed through between the wheels;

[0012] The wireless communication circuit is connected with the digital signal processing circuit, is used for receiving and sending the data of the wheels passed through by the train.

[0013] The integrated train number host in the embodiment of the utility model includes:

[0014] The digital signal processor is used for transmitting the radio frequency signal of the predetermined frequency, identifying and reading the label information of the various railway locomotives and vehicles and processing;

[0015] The demodulation circuit and the FPGA processing circuit are connected with the digital signal processor, and are used for decoding the vehicle label information.

[0016] The radio frequency antenna is connected with the digital signal processor through the PLL phase-locked loop and the filter, and is used for sending the radio frequency weak signal set by the digital signal processor.

[0017] The trackside junction box in the embodiment of the utility model is connected with the integrated train number host through a communication and power supply composite cable, and the trackside junction box is internally provided with a power module, a wireless communication board card and a lightning protection unit.

[0018] The wireless access device in the embodiment of the utility model is used for receiving and transmitting the wheel and train number information, and transmitting the data to the background server through the Ethernet; the wireless access device includes a digital signal processing circuit, a large-capacity storage and a communication antenna.

[0019] The wireless wheel sensor in the embodiment of the utility model is powered by a battery, and adopts a low-power wireless transmission technology as a data wireless transmission mode.

[0020] The junction box in the embodiment of the utility model is installed in a trackside floor type, and is fixed by using a pre-buried foundation.

[0021] The wireless access device in the embodiment of the utility model is arranged at a position within the visible distance transmission distance of each integrated train number host and wireless wheel sensor.

[0022] Compared with the prior art, the utility model has the advantages that:

[0023] 1) The vehicle number host device adopts integrated design, the radio frequency baseband and the processing circuit such as FPGA are integrated with the antenna, the host directly outputs vehicle number information to the outside, effectively reduces signal transmission loss and improves identification performance, and the structure is more compact, small in size, and convenient for field installation;

[0024] 2) The wireless magnetic steel acquisition device adopts integrated low-power long-life design, is provided with lightning protection and signal conditioning circuit, is powered by battery and transmits in wireless mode, and is beneficial to large-scale deployment on site;

[0025] 3) Data transmission adopts wireless communication networking, which is stable and reliable, and reduces optical cable laying between devices;

[0026] 4) The communication and power supply of the vehicle number host are completed by the trackside concentrator box, a low-voltage junction box is directly buried, and the trackside cabinet poured by concrete is no longer needed, the signal cable laying distance is shortened, and the construction difficulty and cost are reduced.

[0027] The utility model is described in detail below in combination with the drawings and specific embodiments, but is not limited to the utility model. DRAWINGS

[0028] Figure 1 It is the railway vehicle number electronic tag ground recognition device structural drawing of the utility model;

[0029] Figure 2 It is the wireless wheel sensor structure schematic view of the utility model;

[0030] Figure 3 It is the integrated vehicle number host structure schematic view of the utility model;

[0031] Figure 4 It is the trackside concentrator box structure schematic view of the utility model;

[0032] Figure 5 It is the wireless access device structure schematic view of the utility model;

[0033] Figure 6 It is the device installation schematic view of the utility model;

[0034] Among them, the reference sign

[0035] 1: acquisition equipment;2: wireless access device;

[0036] 11: wireless wheel sensor;12: integrated vehicle number host equipment;

[0037] 13: trackside concentrator box;111: first wheel sensor;

[0038] 112: second wheel sensor;113: lightning protection and magnetic steel signal conditioning circuit;

[0039] 114: digital signal processing circuit; 116: large capacity lithium battery;

[0040] 115: low power supply circuit; 117: wireless communication circuit;

[0041] 118: wireless communication antenna; 121: antenna;

[0042] 122: filter; 123: low noise amplifier;

[0043] 124: demodulation circuit; 125: FPGA processing circuit;

[0044] 126: digital signal processor; 1211: power detection and fault detection module;

[0045] 1210: PA power amplifier; 127: power supply and communication circuit;

[0046] 128: PLL phase-locked loop; 129: filter;

[0047] 131: wireless communication antenna; 132: wireless communication board card;

[0048] 133: power module; 134: power supply lightning protection unit;

[0049] 21: real-time clock; 22: wireless communication circuit;

[0050] 23: wireless communication antenna; 24: digital signal processing circuit;

[0051] 25: power supply circuit; 26: large capacity storage;

[0052] 27: Ethernet and optical fiber communication circuit. DETAILED DESCRIPTION

[0053] The technical scheme of the utility model will be described in detail below in combination with the drawings and specific embodiments, so as to further understand the purpose, scheme and effect of the utility model, but not as a limitation of the protection scope of the claims of the utility model.

[0054] The description of "embodiment", "another embodiment", "the embodiment" and the like in the specification means that the described embodiment can include specific features, structures or characteristics, but not every embodiment must include these specific features, structures or characteristics. In addition, such expressions do not mean the same embodiment. Further, when a specific feature, structure or characteristic is described in combination with an embodiment, it is shown that such feature, structure or characteristic is combined into other embodiments within the knowledge of those skilled in the art, whether or not it is explicitly described.

[0055] The specification and subsequent claims use certain terms to refer to specific components or parts. Those skilled in the art will understand that users or manufacturers may use different names or terms to refer to the same component or part. This specification and subsequent claims do not distinguish components or parts by differences in name, but rather by differences in function. The terms "comprising" and "including" used throughout the specification and subsequent claims are open-ended and should be interpreted as "including but not limited to." Furthermore, the term "connection" here includes any direct or indirect means of connection.

[0056] It should be noted that in the description of this utility model, terms such as "lateral," "longitudinal," "upper," "lower," "front," "rear," "left," "right," "vertical," "horizontal," "top," "bottom," "inner," and "outer," indicating orientation or positional relationships, are based on the orientation or positional relationships shown in the accompanying drawings and are used only for the convenience of describing this utility model and simplifying the description. They do not indicate or imply that the device or element referred to must have a specific orientation, or be constructed and operated in a specific orientation, and therefore should not be construed as a limitation of this utility model. For clarity, the sequential terms such as "first," "second," "third," and "fourth" used herein are used to distinguish an element, region, or part from another identical or similar element, region, or part, and are not used to limit specific elements, regions, or parts.

[0057] like Figure 1 As shown, the present invention provides a ground identification device for railway vehicle number electronic tags, comprising: a data acquisition device 1 and a wireless access device 2 that is communicatively connected to the data acquisition device; the data acquisition device 1 includes: a wireless wheel sensor 11 and an integrated vehicle number host device 12;

[0058] The aforementioned wireless wheel sensor 11 can communicate directly or be cascaded with the wireless access device 2 via the railside hub box 13 to detect and collect train axle data and send power-on / power-off signals. The aforementioned integrated vehicle number host device 11 also includes: a power supply device, which receives the power-on / power-off signals via the railside hub box 13, supplies power to the integrated vehicle number host device, and transmits locomotive and rolling stock electronic tag information. The integrated vehicle number host device 12 is connected to the wireless access device 2 for receiving the power-on / power-off signals, activating / deactivating the collection of railway locomotive and rolling stock electronic tag information, and performing decoding and parsing processing.

[0059] The wireless access device 2 is used for receiving information related to the wheel and the car number and transmitting to the server through Ethernet.

[0060] The wireless wheel sensor 11 is integrated with a wheel sensor, a lightning protection circuit, a signal conditioning circuit, a digital signal processing circuit and a wireless communication circuit, and can detect an incoming train and count the axles and vehicles.

[0061] The integrated car number host 12 is designed in an integrated manner and is integrated with a radio frequency antenna, a radio frequency baseband, a demodulation circuit, an FPGA processing circuit, a digital signal processor and a lightning protection circuit, so as to reduce the transmission loss caused by the radio frequency feed line between the car number antenna and the host.

[0062] The trackside concentrator box 13 is internally provided with a power module, a wireless communication board and a lightning protection unit, and is powered by a 220V three-core cable.

[0063] As shown in Figure 2 The wireless wheel sensor 11 device includes a first wheel sensor 111 (i.e., a wheel sensor A), a second wheel sensor 112 (i.e., a wheel sensor B), a lightning protection and magnetic steel signal conditioning circuit 113, a digital signal processing circuit 114, a large-capacity lithium battery 116, a low-power power supply circuit 115, a wireless communication circuit 117 and a wireless communication antenna 118.

[0064] The first wheel sensor 111 and the second wheel sensor 112 are used for collecting train axle data; the lightning protection and magnetic steel signal conditioning circuit 113 is connected with the first wheel sensor and the second wheel sensor, and is used for bearing a switch magnetic steel and outputting a wake-up signal and a start / stop signal when a vehicle passes; the digital signal processing circuit 114 is connected with the lightning protection and magnetic steel signal conditioning circuit 113 and is used for receiving the wake-up signal, recording and transmitting the time axis information passed between each wheel; and the wireless communication circuit 118 is connected with the digital signal processing circuit 114 and is used for receiving and sending the data of the wheel passed by the train.

[0065] As shown in Figure 3The diagram shows the integrated vehicle registration host structure of this utility model. The device includes a radio frequency antenna 121, a filter 122, a low noise amplifier 123, a radio frequency baseband, a demodulation circuit 124, an FPGA processing circuit 125, a digital signal processor 126, a power detection and fault detection module 1211, a PA power amplifier 1210, a filter 129, a PLL phase-locked loop 128, a power supply and communication circuit 127, and a lightning protection circuit (not shown in the figure).

[0066] The digital signal processor 126 is used to transmit radio frequency signals at a predetermined frequency, identify and read various railway locomotive and vehicle tag information and process it; the demodulation circuit 124 and the FPGA processing circuit 125 are connected to the digital signal processor 126 and are used to decode vehicle tag information; the radio frequency antenna 121 is connected to the digital signal processor 126 through the PLL phase-locked loop 128 and the filter 129 and is used to transmit the weak radio frequency signal set by the digital signal processor.

[0067] like Figure 4 The diagram shown is a schematic of the structure of the railside junction box of this utility model. The device includes a wireless communication antenna 131, a wireless communication board 132, a power module 133, and a power surge protection unit 134.

[0068] The aforementioned railside junction box 13 is connected to the integrated vehicle number host 12 via a combined communication and power supply cable.

[0069] like Figure 5 The diagram shown is a schematic of the wireless access device structure of this utility model. The device includes a real-time clock 21, a digital signal processing circuit 24, a large-capacity storage 26, an Ethernet and fiber optic communication circuit 27, a power supply circuit 25, a wireless communication circuit 22, and a wireless communication antenna 23.

[0070] The aforementioned wireless access device 2 is used to receive and transmit wheel and vehicle number information, and transmit data to the back-end server via Ethernet.

[0071] like Figure 6 The diagram shown is an installation schematic of this utility model. The wireless wheel sensor 11 and the integrated vehicle number host 12 are installed on the trackside to collect axle and electronic tag information. The wireless access device 2 and each integrated vehicle number host 12 and wireless wheel sensor 13 are in a line-of-sight transmission location, and interact with the server in the station through network cable or optical fiber.

[0072] The wireless wheel sensor 11 is closed when there is no vehicle passing, the digital signal processing circuit is in standby state, and only the signal conditioning circuit is open. When the vehicle passes, the signal conditioning circuit outputs a signal to wake up the digital signal processing circuit, which analyzes the signal waveform output by the signal conditioning circuit to detect the effective signal of the wheel, and records the time axis information between the wheels and transmits it in the subsequent wireless communication.

[0073] The wireless wheel sensor 11 includes a switch magnetic function: installed 50 meters before and after the integrated host, the wake-up circuit records the axle data itself, and transmits the on / off signal to the trackside concentrator to the integrated host, and activates / closes the radio frequency antenna to read the electronic tag.

[0074] The axle and vehicle counting function is installed in parallel with the integrated host, which is used to collect axle information.

[0075] In addition, because it is installed inside the track, when the wireless transmission is disturbed, it can be connected to the trackside concentrator first, and the axle information is cascaded to the wireless access device.

[0076] Preferably, the wireless wheel sensor 11 is powered by a battery, and in order to realize long-term work of the wireless wheel sensor under battery power supply, a low-power wireless transmission technology is selected as the data wireless transmission method in the wireless transmission mode of wheel and vehicle number data.

[0077] The above-mentioned integrated vehicle number host 12 sets the PLL phase-locked loop 128 to output the corresponding frequency of the radio frequency weak signal through the digital signal processor 126 according to the configured working frequency, and the signal is processed by the filter 122, then the power amplifier 1210 transmits the signal to the top of the track according to the set output power through the radio frequency antenna 121. When the vehicle passes, the transmitted radio frequency signal activates the electronic tag at the bottom of the vehicle, and the electronic tag returns the vehicle information to the vehicle number host through the radio frequency signal. The received radio frequency signal is filtered and amplified by the coupler inside the host, and the original bit stream is output to the FPGA 125 for decoding. After decoding, the data is processed by the digital signal processing, and the label is rechecked and restored, and the data is output in the form of RS232 / RS485 signal according to the specific protocol through the digital communication circuit 127.

[0078] The track-side distribution box 13 is powered by a 220V three-core cable. The built-in power module 133 is used to convert AC 220V to low-voltage DC power for the integrated car number host 12. The built-in wireless communication board card 132 is used to transmit the data of the integrated car number host through wireless means. The external 220V AC power is connected to the distribution box 13, and after lightning protection, it is converted to low-voltage DC 24V by the internal power module 133 to power the integrated car number host. At the same time, the power module 133 also powers the wireless communication board card 132. The wireless communication board card 132 converts data into wireless signals through a cable and transmits data to the access device for long-distance transmission and interaction. The distribution box 13 is installed on the track side. It is fixed by pre-buried foundation, does not need concrete pouring base, and only needs to provide AC 220V power supply, without communication cable,

[0079] The wireless access device 2 is used to receive and transmit wheel and car number information, and transmit it to the server through Ethernet. It integrates wireless wheel sensor collection, car number wireless collection, Ethernet or optical fiber 27 communication functions, and is internally provided with a memory 26 for receiving, data processing, network transmission, and can perform operations on collected wheel and car number data to exclude repeated vehicles.

[0080] Preferably, the wireless access device 2 is deployed in a visible distance from each integrated car number host 12 and wireless wheel sensor 11, and interacts with the server in the station through a network cable or optical fiber. According to the needs of the station, multiple wireless access devices 2 can be deployed, and one wireless access device 2 can manage up to ten integrated car number hosts 12 and ten groups of wireless wheel sensors 11.

[0081] Of course, the present application can also have other various embodiments, and those skilled in the art can make various corresponding changes and modifications according to the present application without departing from the spirit and essence of the present application. However, these corresponding changes and modifications should all belong to the protection scope of the claims attached to the present application.

Claims

1. A railway car number electronic label ground recognition device, characterized in that, include: Data acquisition device and wireless access device communicatively connected to said data acquisition device; The data acquisition device includes: Wireless wheel sensor: The wireless access device is connected via communication or cascaded through a railside hub box to collect axle data of passing trains and send power-on / power-off signals. Integrated vehicle number host device: It is connected to the wireless access device for receiving the power-on / power-off signal, activating / deactivating the collection of electronic tag information of railway locomotive and rolling stock numbers, and performing decoding and parsing processing.

2. The apparatus of claim 1, wherein the apparatus is configured to determine the presence of the electronic tag by detecting a signal transmitted by the electronic tag. The integrated vehicle number host device also includes a power supply device, which uses a railside hub box to receive the power-on / power-off signal, and supplies power to the integrated vehicle number host device and transmits the locomotive and rolling stock electronic tag information.

3. The apparatus of claim 1 wherein, The wireless wheel sensor includes: The first wheel sensor and the second wheel sensor are used to collect axle data of the train passing by. The lightning protection and magnet signal conditioning circuit is connected to the first wheel sensor and the second wheel sensor. It is used to perform the on / off magnet function or the axle counting and vehicle counting function. When a vehicle passes by, the magnet signal conditioning circuit outputs a wake-up signal and the power-on / power-off signal. A digital signal processing circuit, connected to the lightning protection and magnet signal conditioning circuit, is used to receive the wake-up signal, record and transmit the time axis information between each wheel; A wireless communication circuit, connected to the digital signal processing circuit, is used to receive and transmit data on the passing of the train wheels.

4. The apparatus of claim 1 wherein, The integrated vehicle registration host includes: A digital signal processor is used to transmit radio frequency signals at a predetermined frequency, identify and read various railway locomotive and rolling stock tag information, and process it. The demodulation circuit and FPGA processing circuit are connected to the digital signal processor and are used to decode vehicle tag information; The radio frequency antenna is connected to the digital signal processor via a PLL and a filter, and is used to transmit a weak radio frequency signal set by the digital signal processor.

5. The apparatus of claim 2 wherein, The trackside hub box is connected to the integrated vehicle number host via a combined communication and power supply cable. The trackside hub box includes a power module, a wireless communication board, and a lightning protection unit.

6. The apparatus of claim 1 wherein, The wireless access device is used to receive wheel and vehicle number information and transmit data to the backend server via Ethernet; the wireless access device includes: digital signal processing circuit, large-capacity storage and communication antenna.

7. The apparatus of claim 3 wherein, The wireless wheel sensor is battery powered and uses low-power wireless transmission technology as the data wireless transmission method.

8. The apparatus of claim 5 wherein, The junction box is installed on the ground along the rail and is fixed using a pre-embedded foundation.

9. The apparatus of claim 6 wherein, The wireless access device is positioned at a distance within line-of-sight transmission range of each of the integrated vehicle number main units and the wireless wheel sensors.

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