Relay-based wireless transmission device for detection data of electric service detection vehicle

Abstract

The utility model discloses a relay-based wireless transmission device for detection data of an electric service detection vehicle, which comprises an isolation component used for acquiring locomotive positioning information from a vehicle-mounted LKJ equipment bus expansion box; the acquisition assembly is connected with the isolation assembly and a locomotive signal host test jack and is used for acquiring track circuit induced voltage and locomotive signal lamp position information through the jack; the relay assembly is arranged in a train compartment which is separated from a traction locomotive or a compartment provided with the relay assembly by a preset number of sections, is in wireless connection with the acquisition assembly or the external relay assembly and is used for sending the positioning information, the induction voltage and the lamp position information to the external relay assembly or the receiving assembly; the receiving assembly is arranged in the electric service inspection van, is in wireless connection with the relay assembly and is used for sending the positioning information, the induction voltage and the lamp position information to external data analysis equipment; and the electric service inspection van is hung at the tail of the passenger train carriage. The utility model supports the tail hanging detection operation of the electric service detection vehicle, and improves the data transmission efficiency and reliability.

Description

Technical Field

[0001] The utility model relates to the technical field of railway signal detection of comprehensive detection trains, in particular to a wireless transmission device for detection data of a signal maintenance vehicle based on a relay. Background Art

[0002] This section aims to provide background or context for the embodiments of the utility model stated in the claims. The description herein is not admitted to be prior art merely because it is included in this section.

[0003] Conventional speed railway signal equipment: A conventional speed railway, the full name of which is a conventional speed railway system. The definition of a conventional speed railway is: a non-passenger dedicated line with a speed level not greater than 160 km / h and a passenger dedicated line with a speed level not greater than 140 km / h. Compared with the CTCS-2 / 3 high-speed railway train control system, the line data of a conventional speed railway is stored in an on-vehicle database. Fixed block is mostly adopted in the section, and color light signal machines are provided. When a train is running, the driver mainly relies on the display of the ground color light signal machine and the cab signal as a supplement.

[0004] Conventional speed comprehensive detection train: Except for manual inspection, the existing detection of the infrastructure status of the conventional speed railway signal system mainly conducts daily dynamic detection on the line through a track, a catenary, and a signal maintenance vehicle. The signal detection system equipped on the signal maintenance vehicle is used for dynamic testing of railway signal trackside equipment to evaluate the equipment status and provide data support for guiding on-site maintenance. The detection related to the track circuit is the core item of signal dynamic detection. Due to the limitation of the working principle, the relevant signal acquisition points must be located before the first pair of wheels in the train running direction, and relevant data can only be obtained through on-vehicle equipment of the locomotive.

[0005] In the early stage, this problem was generally solved by leading out a collection cable group from the test jack of the cab signal main unit of the traction locomotive. This cable group passes through the vehicle body through an opening (such as a window, an inspection port, etc.) on the locomotive, and is suspended between the traction locomotive and the signal maintenance vehicle in a binding manner, and finally the induced signal is led to the collection equipment installed on the latter. The collection cable group is composed of 2-3 multi-core cables, and the length is generally greater than 30 meters. The operation mode of the existing track circuit detection subsystem of the signal maintenance vehicle is shown in Figure 1 .

[0006] In this way, the collection cable group needs to pass through the vehicle body through an opening on the locomotive, which destroys the airtightness of the locomotive. Moreover, the collection cable group is temporarily suspended outside the vehicle body, and there are risks such as falling off and dragging ground facilities. Therefore, a track circuit wireless transmission system is generally installed temporarily in the locomotive equipment room, and the track circuit signal and the lamp position signal are collected through the cab signal main unit. See Figure 2 .

[0007] During the use process, it is found that the existing wireless transmission system mainly has the following problems:

[0008] (1) The system transmission channel is based on wireless serial port technology, and the front-end device communicates directly with the receiving device point-to-point. Due to relevant restrictions, the available frequency and the selection range of transmission power are limited, resulting in a low bandwidth of the wireless transmission channel. In addition, the system transmission antenna cannot be arranged outside the vehicle. Affected by the shielding effect of the locomotive shell, the transmission effect is not ideal. When the two are close, for example, when the signal inspection vehicle is in the position next to the locomotive, the communication effect can be guaranteed. However, when the signal inspection vehicle is at the end of the train, especially at the end of a fully loaded train, in a section with complex terrain, the packet loss rate of wireless communication will increase significantly.

[0009] (2) The positioning system of the signal inspection vehicle is based on the line database, and uses GPS / axle photoelectric encoder to provide real-time longitude, latitude and speed information to determine the current position of the inspection vehicle. It is found in actual application that the reliability of this positioning system is poor when running in the tunnel (especially when entering and exiting the tunnel entrance). Summary of the Utility Model

[0010] The embodiment of the utility model also provides a wireless transmission device for signal inspection vehicle detection data based on relay, which is used to support the tail-hanging detection operation of the signal inspection vehicle and improve the transmission efficiency and reliability of detection data. The device includes: an isolation component, a collection component, at least one relay component and a receiving component, wherein:

[0011] The isolation component is arranged in the tractor locomotive and is used to obtain the locomotive positioning information from the equipment bus expansion box of the on-vehicle train operation monitoring device LKJ and send the positioning information to the collection component;

[0012] The collection component is arranged in the tractor locomotive and is connected to the isolation component and the test jack of the locomotive signal main unit. It is used to collect the track circuit induction voltage and the locomotive signal lamp position information through the test jack of the locomotive signal main unit, and send the positioning information, the track circuit induction voltage and the locomotive signal lamp position information to the relay component;

[0013] The relay component is arranged in a passenger train carriage separated by a preset number of carriages from the tractor locomotive or the passenger train carriage where the relay component is installed, and is wirelessly connected to the collection component or an external relay component. It is used to send the positioning information, the track circuit induction voltage and the locomotive signal lamp position information to the external relay component or the receiving component;

[0014] The receiving component is arranged in the signal inspection vehicle and is wirelessly connected to the relay component. It is used to send the positioning information, the track circuit induction voltage and the locomotive signal lamp position information to an external data analysis device; the signal inspection vehicle is hung at the tail of the passenger train carriage.

[0015] Compared with the existing detection data transmission scheme, the beneficial technical effects of the wireless transmission device for signal inspection vehicle detection data based on relay provided by the embodiment of the utility model are:

[0016] In the embodiment of the present utility model, the receiving component is installed in the signal and communication inspection vehicle. The isolation component, the acquisition component, and the relay component are respectively arranged in the locomotive and the passenger train carriage during use. Each component is separated by a preset number of carriages. By means of relaying, the transmission of detection data such as the induced voltage of the track circuit and the position information of the locomotive signal lamp from the locomotive to the end of the train is realized, which supports the end-hanging detection operation of the signal and communication inspection vehicle and improves the transmission efficiency and reliability. The embodiment of the present utility model also obtains accurate locomotive positioning information from the on-vehicle LKJ equipment bus expansion box, and also realizes the transmission of the positioning information from the locomotive to the end of the train by means of relaying, improving the transmission efficiency and reliability of the positioning detection data.

[0017] In summary, the embodiment of the present utility model supports the end-hanging detection operation of the signal and communication inspection vehicle and improves the transmission efficiency and reliability of the detection data. BRIEF DESCRIPTION OF THE DRAWINGS

[0018] In order to more clearly illustrate the technical solutions in the embodiments of the present utility model or the prior art, the following will briefly introduce the drawings required for use in the description of the embodiments or the prior art. Obviously, the following drawings are only some embodiments of the present utility model. For those of ordinary skill in the art, without creative efforts, other drawings can also be obtained based on these drawings. In the drawings:

[0019] Figure 1 It is a schematic structural diagram of a detection data transmission device of a signal and communication inspection vehicle in the prior art;

[0020] Figure 2 It is a schematic structural diagram of a detection data transmission device of a signal and communication inspection vehicle in another prior art;

[0021] Figure 3 It is a schematic connection diagram of a wireless detection data transmission device for a signal and communication inspection vehicle based on relaying in the embodiment of the present utility model;

[0022] Figure 4 It is a schematic structural and deployment diagram of a wireless detection data transmission device for a signal and communication inspection vehicle based on relaying in the embodiment of the present utility model;

[0023] Figure 5 It is a schematic structural diagram of the isolation component in the embodiment of the present utility model;

[0024] Figure 6 It is a schematic structural diagram of the acquisition component in the embodiment of the present utility model;

[0025] Figure 7 It is a schematic structural diagram of the relay component in the embodiment of the present utility model;

[0026] Figure 8 This is a schematic structural diagram of the receiving component in the embodiment of the present utility model;

[0027] Figure 9 This is a three-dimensional structural diagram of the portable chassis in the embodiment of the present utility model;

[0028] Figure 10 This is a schematic diagram of fixing the portable chassis by a fixing device on an iron floor or the tabletop of an equipment support in the installation environment of the embodiment of the present utility model;

[0029] Figure 11 This is a schematic diagram of fixing the portable chassis on the side by a fixing device in the installation environment of the cabinet body or the cabinet door of an iron metal cabinet in the embodiment of the present utility model;

[0030] Figure 12A and Figure 12B This is a schematic diagram of the fixing process of fixing the portable chassis on the side in an embodiment of the present utility model;

[0031] Figure 13 This is a schematic diagram of fixing the portable chassis on the side in another embodiment of the present utility model;

[0032] Figure 14A 、 Figure 14B and Figure 15 This is a schematic diagram of fixing the portable chassis by a fixing device when the installation environment in an embodiment of the present utility model is an installation environment with a vertical equipment support rod composed of a round pipe, a square pipe or an angle steel. Detailed implementation manners

[0033] To make the objectives, technical solutions and advantages of the embodiments of the present utility model clearer and more understandable, the following further details the embodiments of the present utility model with reference to the accompanying drawings. Herein, the illustrative embodiments of the present utility model and their descriptions are used to explain the present utility model, but not to limit the present utility model.

[0034] The present utility model provides a wireless transmission device for detecting data of an electric signal inspection vehicle based on a relay, so as to solve the problems that the existing wireless transmission device has a short transmission distance, poor reliability of the positioning system, and inability to support the tail-hanging inspection operation of the electric signal inspection vehicle, thereby reducing the application cost of the electric signal inspection vehicle and improving the detection efficiency and reliability. The following details the wireless transmission device for detecting data of the electric signal inspection vehicle based on a relay.

[0035] Figure 3 This is a connection schematic diagram of the wireless transmission device for detecting data of the electric signal inspection vehicle based on a relay in the embodiment of the present utility model; Figure 4 This is a structural and deployment schematic diagram of the wireless transmission device for detecting data of the electric signal inspection vehicle based on a relay in the embodiment of the present utility model, as shown in Figure 3 and Figure 4As shown in the figure, the wireless transmission device for detecting data of the electric signal inspection vehicle based on relay in the embodiment of the present utility model includes: an isolation component 1, a collection component 2, at least one relay component 3, and a receiving component 4, where:

[0036] The isolation component 1 is arranged in the locomotive of the tractor, and is used to obtain the locomotive positioning information from the vehicle-mounted train operation monitoring device LKJ equipment bus extension box, and send the positioning information to the collection component;

[0037] The collection component 2 is arranged in the locomotive of the tractor, and is connected to the isolation component and the locomotive signal host test jack, and is used to collect the track circuit induced voltage and the locomotive signal lamp position information through the locomotive signal host test jack, and send the positioning information, the track circuit induced voltage and the locomotive signal lamp position information to the relay component;

[0038] The relay component 3 is arranged in the passenger train carriage separated by a preset number of sections from the locomotive of the tractor or from the passenger train carriage where the relay component is installed, and is wirelessly connected to the collection component or to an external relay component, and is used to send the positioning information, the track circuit induced voltage and the locomotive signal lamp position information to the external relay component or the receiving component;

[0039] The receiving component 4 is arranged in the electric signal inspection vehicle, and is wirelessly connected to the relay component, and is used to send the positioning information, the track circuit induced voltage and the locomotive signal lamp position information to an external data analysis device; the electric signal inspection vehicle is hung at the tail of the passenger train carriage.

[0040] When the wireless transmission device for detecting data of the electric signal inspection vehicle based on relay provided by the embodiment of the present utility model works: First, the isolation component 1 obtains the locomotive positioning information from the vehicle-mounted train operation monitoring device LKJ equipment bus extension box, and sends the positioning information to the collection component; Second, the collection component 2 collects the track circuit induced voltage and the locomotive signal lamp position information through the locomotive signal host test jack, and sends the positioning information, the track circuit induced voltage and the locomotive signal lamp position information to the relay component; Third, the relay component 3 sends the positioning information, the track circuit induced voltage and the locomotive signal lamp position information to the external relay component or the receiving component; Finally, the receiving component 4 sends the positioning information, the track circuit induced voltage and the locomotive signal lamp position information to an external data analysis device; the electric signal inspection vehicle is hung at the tail of the passenger train carriage.

[0041] Compared with the existing detection data transmission scheme, the beneficial technical effects of the wireless transmission device for detecting data of the electric signal inspection vehicle based on relay provided by the embodiment of the present utility model are:

[0042] In the embodiment of the present utility model, the receiving component is installed in the signal and communication inspection vehicle. The isolation component, the acquisition component, and the relay component are respectively arranged in the locomotive and the passenger train carriages during use. Each component is spaced by a preset number of carriages. By means of relay replacement, the transmission of detection data such as the induced voltage of the track circuit and the information of the locomotive signal lamp position from the locomotive to the end of the train is realized, which supports the end-hanging detection operation of the signal and communication inspection vehicle and improves the transmission efficiency and reliability. The embodiment of the present utility model also obtains accurate locomotive positioning information from the on-vehicle LKJ equipment bus expansion box, and also realizes the transmission of the positioning information from the locomotive to the end of the train by means of relay replacement, improving the transmission efficiency and reliability of the positioning detection data.

[0043] In summary, the embodiment of the present utility model supports the end-hanging detection operation of the signal and communication inspection vehicle and improves the transmission efficiency and reliability of the detection data.

[0044] In the implementation of the present utility model, the wireless transmission device for the detection data of the signal and communication inspection vehicle based on relay mainly protects: the receiving component is installed in the signal and communication inspection vehicle, and the isolation component, the acquisition component, and the relay component are respectively arranged in the locomotive and the passenger train carriages during use. Each component is spaced by a preset number of carriages. By means of relay replacement, the structure of the data transmission device for the detection data such as the induced voltage of the track circuit and the information of the locomotive signal lamp position from the locomotive to the end of the train is realized. The related parsing and other operations can be realized by the existing technology. Therefore, the present utility model does not involve the improvement of software.

[0045] The following is a detailed introduction to the wireless transmission device for the detection data of the signal and communication inspection vehicle based on relay.

[0046] I. Overall Structure of the Wireless Transmission Device for the Detection Data of the Signal and Communication Inspection Vehicle Based on Relay Provided by the Embodiment of the Present Utility Model

[0047] For the overall structure of the wireless transmission device for the detection data of the signal and communication inspection vehicle based on relay, see Figure 3 . The device mainly includes an isolation component, an acquisition component, two relay components, and a receiving component. Except that the receiving component uses a 3U-high CPCI chassis, the other components all use portable chassis with the ability to be quickly installed in the locomotive. For details, see the following embodiment introduction.

[0048] The receiving component is installed in the signal and communication inspection vehicle. The isolation component, the acquisition component, and the relay component (and the attached wireless signal antenna) are respectively arranged in the locomotive and the passenger train carriages during use. Each component is spaced by 4-6 carriages. That is, in one embodiment, the number of the preset number of passenger train carriages is four to six. By means of relay replacement, the transmission of the detection data from the locomotive to the end of the train is realized. For the operation mode of the device, see Figure 4 .

[0049] II. Key components in the wireless transmission device for detecting data of the signal and communication inspection vehicle based on relay provided by the embodiment of the present utility model

[0050] (1) Isolation component

[0051] Since the on-vehicle LKJ device is a safety device, in order to ensure operation safety, isolation measures need to be added. Considering some vehicle models, the installation positions of the LKJ device and the locomotive signal main unit are far apart, so the isolation component is designed as an independent component.

[0052] This isolation component is used to obtain positioning information from the bus expansion box of the on-vehicle LKJ device and forward it to the acquisition component of the device.

[0053] The isolation component mainly includes: a positioning information isolation circuit, a positioning data interface, a first CPU, a positioning data output interface, a battery, a power supply, and a charging management circuit. See Figure 5 .

[0054] This isolation component is powered by a battery and uses a portable chassis with the ability to be quickly installed inside the locomotive. It is temporarily installed inside the locomotive during use. The isolation component has two interfaces. Among them, the positioning data acquisition interface is used to collect positioning information from the bus expansion box of the on-vehicle LKJ device through the isolation circuit. After the above positioning information is parsed by the CPU (the first CPU) of the isolation component, it is output to the acquisition component through the positioning data output interface. The battery, power supply, and charging management circuit are used for system power supply and power management.

[0055] As can be seen from the above, in one embodiment, as Figure 5 shown, the isolation component includes: a positioning information isolation circuit, a positioning data acquisition interface, a first CPU, and a positioning data output interface, where:

[0056] The positioning information isolation circuit is wirelessly connected to the bus expansion box of the on-vehicle LKJ device and is used to isolate and process the locomotive positioning information to obtain the isolated and processed positioning information;

[0057] The positioning data acquisition interface is connected to the positioning information isolation circuit and is used to collect the isolated and processed positioning information from the bus expansion box of the on-vehicle LKJ device through the isolation circuit;

[0058] The first CPU is connected to the positioning data acquisition interface and is used to parse and process the format of the isolated and processed positioning information to obtain the format-parsed and processed positioning information;

[0059] The positioning data output interface is connected to the first CPU and is used to send the format-parsed and processed positioning information to the acquisition component.

[0060] As can be seen from the above description, the present utility model mainly protects the isolation component structure of the positioning information isolation circuit, the positioning data acquisition interface, the first CPU, and the positioning data output interface. As described in the above content, the isolation circuit involved therein isolates the locomotive positioning information, which can be implemented by the safety isolation technology in the prior art, for example, by the safety isolation circuit in the prior art. At the same time, the format parsing of the positioning information performed by the first CPU involved therein can be implemented by the information format parsing technology in the prior art. Therefore, the present utility model does not involve improvements in software.

[0061] (2) Acquisition component

[0062] It is mainly used to collect and format-analyze the track circuit induced voltage through the locomotive signal host test jack, receive and format-analyze the LKJ data from the isolation component, store the data and transmit it to the relay component wirelessly.

[0063] The main function of the acquisition component is to collect the track circuit induced voltage through the locomotive signal host test jack, format-analyze the LKJ data and transmit the relevant data wirelessly. The functional board structure of the locomotive front-end device is as Figure 6 shown.

[0064] The acquisition component mainly includes: an analog signal isolation circuit, an analog signal conditioning circuit, an analog signal acquisition circuit; a positioning information interface circuit, a first wireless channel management circuit, a human-computer interaction management circuit, a second CPU, a storage circuit, a power supply and charging management circuit. See the component structure in Figure 6 .

[0065] The acquisition component is powered by a battery and uses a portable chassis with the ability to be quickly installed inside the locomotive. It is temporarily placed inside the locomotive during use. For details, see the introduction in "Three" in the following embodiments.

[0066] The acquisition component collects two types of analog signals, namely the track circuit induced voltage and the locomotive signal lamp position information, through the locomotive signal host test jack. The above signals are isolated by the analog signal isolation circuit, conditioned by the analog signal conditioning circuit, and the analog-to-digital conversion is completed by the analog signal acquisition circuit. Subsequently, it is sent to the second CPU to complete the format parsing of the induction amplitude, carrier frequency, low frequency, and signal amplitude of the track circuit induced voltage, and complete the format parsing of the locomotive signal lamp position information.

[0067] The acquisition component receives the positioning information sent by the isolation component through the positioning information interface circuit, sends it to the second CPU for processing, and after a predetermined judgment on whether the format is qualified, it is sent to the relay component or the receiving component at the back end again through the positioning information interface circuit.

[0068] After the second CPU completes the format parsing of the analog signal and the positioning information, it completes data packetization, stores the data, and sends it to the relay component at the back end through the wireless channel management circuit.

[0069] The second CPU collects the control input signals from the front panel through the human-machine interaction management circuit and drives the LED lights to display the status information.

[0070] The battery, power supply, and charging management circuit are used for system power supply and power management.

[0071] As can be seen from the above, in one embodiment, as Figure 6 shown, the acquisition component includes: an analog signal isolation circuit, an analog signal conditioning circuit, an analog signal acquisition circuit, a positioning information interface circuit, a second CPU, and a first wireless channel management circuit, where:

[0072] The analog signal isolation circuit is connected to the locomotive signal host test jack, and is used to collect the analog signals of the track circuit induced voltage and the locomotive signal lamp position information through the locomotive signal host test jack, and perform signal isolation processing on the analog signals to obtain the isolated analog signals;

[0073] The analog signal conditioning circuit is connected to the analog signal isolation circuit, and is used to condition the isolated analog signals to obtain the conditioned analog signals;

[0074] The analog signal acquisition circuit is connected to the analog signal conditioning circuit, and is used to convert the conditioned analog signals into digital signals of the track circuit induced voltage and the locomotive signal lamp position information, and send the digital signals of the track circuit induced voltage and the locomotive signal lamp position information to the second CPU;

[0075] The positioning information interface circuit is wirelessly connected to the relay component, and is used to receive the positioning information and send it to the second CPU;

[0076] The second CPU is connected to the analog signal acquisition circuit and the positioning information interface circuit, and is used to perform format parsing on the positioning information, the digital signals of the track circuit induced voltage and the locomotive signal lamp position information, obtain the digital signals of the formatted positioning information, the track circuit induced voltage and the locomotive signal lamp position information, and send them to the first wireless channel management circuit;

[0077] The first wireless channel management circuit is connected to the second CPU and the external antenna, and is used to send the digital signals of the formatted positioning information, the track circuit induced voltage and the locomotive signal lamp position information to the relay component through the external antenna.

[0078] As described in the previous section, the present utility model mainly protects the acquisition component structure of the analog signal isolation circuit, analog signal conditioning circuit, analog signal acquisition circuit, positioning information interface circuit, second CPU, and first wireless channel management circuit. As described in the previous content, the analog signal isolation circuit involved therein performs signal isolation processing on analog signals, which can be achieved through the safety isolation technology in the prior art, such as through the safety isolation circuit in the prior art; at the same time, the analog signal conditioning circuit involved therein performs signal conditioning on analog signals, which can be achieved through the signal conditioning technology in the prior art, such as through the quality improvement signal conditioning circuit in the prior art; at the same time, the analog signal acquisition circuit involved therein converts analog signals into digital signals, which can be achieved through the analog-to-digital / digital-to-analog conversion technology in the prior art; in addition, the second CPU involved therein parses the digital signals of the positioning information, track circuit induced voltage, and locomotive signal light position information, which can be achieved through the format information parsing technology in the prior art. Therefore, the present utility model does not involve improvements in software.

[0079] (3) Relay Component

[0080] It is mainly used for the relay transmission of the wireless channel between the acquisition component and the receiving component. The relay component mainly includes: the second wireless channel management circuit, the human-computer interaction management circuit, the third CPU, the power supply, and the charging management circuit. The component structure is shown in Figure 7 .

[0081] This relay component is powered by a battery and uses a portable chassis with the ability to be quickly installed inside the locomotive. When in use, it is temporarily placed inside the passenger train carriage, and 1-2 relay components are selected according to the distance between the trailing electro-signal inspection vehicle and the locomotive. Depending on the specific application situation, there are 4-6 carriages between the acquisition component, each relay component, and the receiving component.

[0082] The second wireless channel management circuit receives the analog signals and positioning information sent by the acquisition component and sends them to the third CPU for format preprocessing. After judging whether the preprocessing of the predetermined format is qualified or not, it is sent to the next-level relay component or receiving component again through the wireless channel management circuit.

[0083] As can be seen from the above, in one embodiment, as Figure 7 shown, the relay component includes: the second wireless channel management circuit and the third CPU, wherein:

[0084] The second wireless channel management circuit is connected to an external antenna and is used to receive the positioning information, track circuit induced voltage, and locomotive signal light position information sent by the acquisition component or an external relay component through the external antenna and send them to the third CPU; send the enhanced positioning information, track circuit induced voltage, and locomotive signal light position information to the external relay component or receiving component through the antenna;

[0085] A third CPU, connected to the second wireless channel management circuit, is configured to perform signal enhancement processing on positioning information, track circuit induced voltage, and locomotive signal light position information and then send them to the second wireless channel management circuit.

[0086] From the above description, it can be seen that the present utility model mainly protects the relay component structure of the second wireless channel management circuit and the third CPU. As described in the above content, the signal enhancement processing of the positioning information, track circuit induced voltage, and locomotive signal light position information by the involved third CPU can be realized by signal enhancement technologies in the prior art, such as through a signal quality enhancement circuit in the prior art. Therefore, the present utility model does not involve improvements in software.

[0087] (4) Receiving component

[0088] The receiving component uses a computer with a CPCI structure and is installed in a 19-inch cabinet in the electrical service detection vehicle. It mainly includes a wireless receiving board, a main board, and a power supply. For the structure of the receiving component, see Figure 8 .

[0089] As can be seen from the above, in one embodiment, as Figure 8 shown, the receiving component includes: a wireless channel receiving board and a main board, where:

[0090] The wireless channel receiving board is connected to an external antenna and is configured to receive the positioning information, track circuit induced voltage, and locomotive signal light position information sent by an external relay component through the external antenna and send them to the main board;

[0091] The main board is connected to an external network switch and is configured to send the positioning information, track circuit induced voltage, and locomotive signal light position information to an external data analysis device through the external network switch.

[0092] III. Portable chassis with the ability to be quickly installed inside a locomotive

[0093] The isolation component, acquisition component, and relay component in the present utility model need to be temporarily installed in the locomotive / coach compartment during use. Due to limited operation time, the installation time for each device is only 5 - 10 minutes. And due to the temporary arrangement, the locomotive / coach compartment generally cannot provide mechanical fixing interfaces. To address this problem, a portable chassis with the ability to be quickly installed inside a locomotive is designed, which can be compatible with the installation requirements of the isolation component, acquisition component, and relay component. See Figure 9 .

[0094] As can be seen from the above, in one embodiment, the isolation component, acquisition component, and relay component are arranged inside a portable chassis with the ability to be quickly installed inside a locomotive, as Figure 9As shown, the portable chassis includes: a box body and a fixing device arranged outside the box body that can be quickly fixed to a locomotive or a passenger train carriage, such as in the way of a fixing bracket installation interface, etc.

[0095] The portable chassis with the ability to be quickly installed inside a locomotive mainly consists of a metal box body, a handle, a data acquisition interface, a human-machine interaction panel, and a fixing bracket installation interface.

[0096] The box body can accommodate the installation of isolation components, acquisition components, and the main board of relay components; the data interface is 3 aviation plugs, which are configured according to the needs of isolation components, acquisition components, and relay components; the human-machine interaction panels of isolation components, acquisition components, and relay components are consistent.

[0097] The design focus of the portable chassis with the ability to be quickly installed inside a locomotive is its quick fixing system. Considering that the locomotive / passenger carriage is a vibrating environment, and the isolation components, acquisition components, and relay components need to be temporarily installed in the locomotive during use. Due to the lack of mechanical fixing interfaces, during the use process, the components are extremely prone to sliding. There are a large number of electromechanical devices (drive shafts, motors) in the locomotive equipment room. Once the components touch the above devices, it is extremely easy to cause accidents. In the application process of existing equipment, tape is generally used for temporary bonding, which is inconvenient to operate and easy to fall off. To solve this problem, a quick fixing system for the portable chassis is designed to quickly fix the chassis inside the locomotive within a few minutes.

[0098] There are a large number of iron components distributed inside the locomotive. The installation of equipment components generally encounters the following scenarios:

[0099] 1. Iron floors or equipment support table tops;

[0100] 2. The cabinet body or cabinet door of an iron metal cabinet;

[0101] 3. Vertical equipment support rods composed of round tubes, square tubes, or angle steels, such as the feet of equipment benches, etc.;

[0102] For these three installation scenarios, 3 fixing structures are designed for the chassis.

[0103] 1. For the installation environment of an iron floor or equipment support table top, 4 strip magnets with a thin silicone rubber layer on the surface are configured at the bottom of the chassis. For the installation environment with an iron plane, such as the iron / steel floor of some locomotives, or the iron / steel horizontal partition in a cabinet or equipment rack, the chassis can be directly adsorbed on the iron partition / floor. By using the self-weight of the chassis and the pressure provided by the magnet adsorption, as well as the friction force provided by the thin silicone rubber layer with a high surface friction coefficient, the chassis is prevented from sliding. See Figure 10 That is, in one embodiment, such as Figure 10As shown, if the installation environment inside the locomotive or passenger train car is an iron floor or the installation environment of the equipment support tabletop, the fixing device is a plurality of strip magnets with thin silicone rubber layers covering the bottom of the box.

[0104] 2. For the installation environment of the cabinet body or cabinet door of an iron metal cabinet, a side adsorption type magnet fixing bracket. There are two quick installation interfaces for bracket installation on the side of the chassis, and two types of fixing brackets are provided at the same time. One of them is a magnetic installation bracket. The bracket includes a bracket main body and a circular magnet with a thin silicone rubber layer. There is an M5 screw hole on the bracket main body, as Figure 11 shown.

[0105] The side ears of the bracket main body part are inserted into two fixing bracket installation interfaces on one side of the chassis main body and fixed by two M5 screws. See Figure 12A and Figure 12B . Subsequently, it is adsorbed on the cabinet body or cabinet door of the iron metal cabinet through the magnetic installation bracket. See Figure 13 . The friction provided by the vertical magnet and the silicone on the chassis bottom plate is used to prevent the chassis from sliding.

[0106] As can be seen from the above, in one embodiment, as Figure 11 、 Figure 12A 、 Figure 12B 、 Figure 13 shown, if the installation environment inside the locomotive or passenger train car is the installation environment of the cabinet body or cabinet door of an iron metal cabinet, the fixing device is a side adsorption type magnet fixing bracket for the box.

[0107] 3. For the installation environment with a vertical equipment support rod composed of a round pipe, a square pipe, or an angle steel, a binding type installation bracket is designed.

[0108] This bracket is basically the same as the main body part and installation method of the adsorption type magnet fixing bracket. The main change is that the magnet fixing bracket at the front end of the bracket is changed to two long strip magic tape fixing ports (used with two burr double-sided magic tapes), and there are two 5mm thick silicone rubber layers inside the bracket, as Figure 14A and Figure 14B shown.

[0109] When in use, the side ears of the bracket main body part are inserted into two fixing bracket installation interfaces on one side of the chassis main body and fixed by two M5 screws (the installation method of the adsorption type magnet fixing bracket can be referred to Figure 12A and Figure 12B ). It is bound to the vertical support rod composed of a round pipe, a square pipe, or an angle steel through two burr double-sided magic tapes, and combined with the friction provided by the silicone on the chassis bottom plate to prevent the chassis from sliding, as Figure 15 .

[0110] As can be seen from the above, in one embodiment, such as Figure 14A , Figure 14B , Figure 15 shown, if the installation environment inside the locomotive or passenger train carriage is an installation environment with vertical equipment support rods composed of round tubes, square tubes or angle steels, the fixing device is a binding type mounting bracket.

[0111] Compared with the existing detection data transmission scheme, the beneficial technical effects of the wireless detection data transmission device for the signal maintenance inspection vehicle based on relay provided by the embodiment of the present invention are as follows:

[0112] In the embodiment of the present invention, the receiving component is installed inside the signal maintenance inspection vehicle, and the isolation component, the acquisition component and the relay component are respectively arranged inside the locomotive and the passenger train carriage during use. Each component is spaced by a preset number of carriages, and the detection data such as the induced voltage of the track circuit and the signal lamp position information of the locomotive are transmitted from the locomotive to the end of the train by means of relay replacement, realizing the support for the tail-hanging detection operation of the signal maintenance inspection vehicle, and improving the transmission efficiency and reliability. The embodiment of the present invention also obtains accurate locomotive positioning information from the vehicle-mounted LKJ equipment bus expansion box, and also realizes the transmission of the positioning information from the locomotive to the end of the train by means of relay replacement, improving the transmission efficiency and reliability of the positioning detection data.

[0113] In summary, the embodiment of the present invention supports the tail-hanging detection operation of the signal maintenance inspection vehicle and improves the transmission efficiency and reliability of the detection data. The specific embodiments described above further elaborate the purpose, technical solution and beneficial effects of the present invention. It should be understood that the above are only specific embodiments of the present invention and are not used to limit the protection scope of the present invention. Any modification, equivalent replacement, improvement, etc. made within the spirit and principle of the present invention shall be included in the protection scope of the present invention.

Claims

1. A relay-based wireless transmission device for detection data of an electric service detection vehicle, characterized in that: include: An isolation component, a collection component, at least one relay component and a receiving component, wherein: The isolation component is arranged in the traction locomotive and is used to obtain the locomotive positioning information from the on-board train operation monitoring device LKJ equipment bus expansion box and send the positioning information to the acquisition component; A collection component is arranged in the traction locomotive, connected to the isolation component and the locomotive signal host test socket, and is used to collect the track circuit induced voltage and locomotive signal light position information through the locomotive signal host test socket, and send the positioning information, track circuit induced voltage and locomotive signal light position information to the relay component; A relay component is arranged in a passenger train carriage separated by a preset number of sections from the traction locomotive or the passenger train carriage where the relay component is installed, and is wirelessly connected to the acquisition component or the external relay component, and is used to send positioning information, track circuit induced voltage and locomotive signal light position information to the external relay component or the receiving component; The receiving component is arranged in the electric inspection vehicle and is wirelessly connected to the relay component to send the positioning information, the track circuit induced voltage and the locomotive signal light position information to the external data analysis equipment; the electric inspection vehicle is hung at the rear of the passenger train carriage.

2. The device according to claim 1, characterized in that The isolation component includes: a positioning information isolation circuit, a positioning data acquisition interface, a first CPU and a positioning data output interface, wherein: The positioning information isolation circuit is wirelessly connected to the on-board LKJ equipment bus expansion box to isolate the locomotive positioning information and obtain the isolated positioning information; The positioning data acquisition interface is connected to the positioning information isolation circuit and is used to collect the isolated positioning information from the vehicle-mounted LKJ equipment bus expansion box through the isolation circuit; The first CPU is connected to the positioning data acquisition interface and is used to perform format parsing on the positioning information after the isolation process to obtain the positioning information after the format parsing process; The positioning data output interface is connected to the first CPU and is used to send the positioning information after analysis and processing to the acquisition component.

3. The device according to claim 1, characterized in that The acquisition component includes: an analog signal isolation circuit, an analog signal conditioning circuit, an analog signal acquisition circuit, a positioning information interface circuit, a second CPU and a first wireless channel management circuit, wherein: The analog signal isolation circuit is connected to the test socket of the locomotive signal host, and is used to collect the analog signal of the track circuit induced voltage and the locomotive signal light position information through the test socket of the locomotive signal host, and perform signal isolation processing on the analog signal to obtain the analog signal after isolation processing; The analog signal conditioning circuit is connected to the analog signal isolation circuit and is used to perform signal conditioning on the analog signal after the isolation process to obtain the analog signal after the signal conditioning; The analog signal acquisition circuit is connected to the analog signal conditioning circuit, and is used to convert the conditioned analog signal into a digital signal of the track circuit induced voltage and the locomotive signal light position information, and send the digital signal of the track circuit induced voltage and the locomotive signal light position information to the second CPU; A positioning information interface circuit is wirelessly connected to the relay component and is used to receive positioning information and send it to the second CPU; The second CPU is connected to the analog signal acquisition circuit and the positioning information interface circuit, and is used to perform format analysis on the digital signals of the positioning information, the track circuit induced voltage, and the locomotive signal light position information, obtain the digital signals of the positioning information, the track circuit induced voltage, and the locomotive signal light position information after format analysis, and send them to the first wireless channel management circuit; The first wireless channel management circuit is connected to the second CPU and the external antenna, and is used to send the digital signals of the format-parsed positioning information, track circuit induced voltage and locomotive signal light position information to the relay component through the external antenna.

4. The device according to claim 1, characterized in that The relay component includes: a second wireless channel management circuit and a third CPU, wherein: The second wireless channel management circuit is connected to the external antenna, and is used to receive the positioning information, track circuit induced voltage and locomotive signal light position information sent by the acquisition component or the external relay component through the external antenna and send it to the third CPU; the enhanced positioning information, track circuit induced voltage and locomotive signal light position information are sent to the external relay component or the receiving component through the antenna; The third CPU is connected to the second wireless channel management circuit and is used for performing signal enhancement processing on the positioning information, the track circuit induced voltage and the locomotive signal light position information and then sending them to the second wireless channel management circuit.

5. The device according to claim 1, characterized in that The receiving component includes: a wireless channel receiving board and a main board, wherein: A wireless channel receiving board is connected to an external antenna and is used to receive positioning information, track circuit induced voltage and locomotive signal light position information sent by an external relay component through the external antenna and send them to the main board; The main board is connected to the external network switch and is used to send the positioning information, track circuit induced voltage and locomotive signal light position information to the external data analysis equipment through the external network switch.

6. The device according to claim 1, characterized in that The number of the preset number of passenger train carriages is four to six.

7. The device according to claim 1, characterized in that The isolation component, collection component and relay component are arranged in a portable case capable of rapid installation in a locomotive. The portable case comprises: a case body and a fixing device arranged outside the case body and capable of rapid fixing to a locomotive or a passenger train compartment.

8. The device according to claim 7, characterized in that If the installation environment in the locomotive or passenger train compartment is an iron floor or an equipment support table, the fixing device is a plurality of bar magnets with a thin silicone rubber layer on the surface arranged at the bottom of the box.

9. The device according to claim 7, characterized in that If the installation environment in the locomotive or passenger train compartment is an installation environment of a cabinet body or cabinet door of an iron metal cabinet, the fixing device is an adsorption-type magnet fixing bracket on the side of the cabinet body.

10. The device according to claim 7, characterized in that If the installation environment in the locomotive or passenger train compartment is an installation environment with vertical equipment support rods composed of round tubes, square tubes or angle steels, the fixing device is a binding type installation bracket.

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