Monitoring device of railway signal power supply screen system and railway signal power supply screen system

Abstract

The invention discloses a monitoring device of a railway signal power supply screen system and the railway signal power supply screen system. The power supply output end of the direct-current power supply is connected with the power supply input end of the temperature acquisition board card; a plurality of analog quantity sampling channels and a plurality of switching value sampling channels are arranged on the temperature acquisition board card, the analog quantity sampling channels are connected with the thermistor, and the switching value sampling channels are connected with the smoke and fire detector; the communication output end of the temperature acquisition board card is connected with the communication input end of an original railway signal power supply screen monitoring unit of the railway signal power supply screen system; and the temperature acquisition board card is used for sending the temperature data and the smoke alarm information to the railway signal power supply screen monitoring unit for real-time display and storage. According to the monitoring device of the railway signal power supply screen system and the railway signal power supply screen system, fire hazard monitoring can be carried out on the railway signal power supply screen system, and safe, reliable and healthy operation of the railway signal power supply screen system is ensured.

Description

Technical Field

[0001] The present invention relates to the technical field of railway signal power supply panel systems, in particular to a monitoring device for railway signal power supply panel systems and a railway signal power supply panel system. Background Art

[0002] At present, the railway signal power supply system is mainly composed of railway signal power supply, UPS (Uninterruptible Power Supply), battery pack and other high-power power supply equipment. Among them, the input power of the railway signal power supply is first connected to the railway signal power supply, UPS and battery pack, and then the stable power output by UPS is connected to the lower level of the signal power supply (such as lighting equipment, turnout equipment and other railway signal equipment) for power supply.

[0003] The railway signal power supply system has many types of output power, including: AC power output through an isolation transformer, and DC power output through a DC module through a wire or bus. The railway signal power supply is equipped with a monitoring unit, which can monitor the input voltage, current and other related information of the railway signal power supply in real time, the output voltage, current, module status, circuit breaker status, UPS voltage, current and other related information, battery voltage, temperature, internal resistance and other information.

[0004] After the railway signal power supply screen system is put into use, except for the skylight maintenance time, it is necessary to continuously supply power to the railway signal equipment such as lighting equipment and turnout equipment. If the high-power equipment is overloaded, short-circuited, or poorly connected during operation, it is easy to cause equipment failure, and in serious cases, even fire hazards.

[0005] Therefore, there is an urgent need to develop a technology that can monitor the fire hazards of the railway signal power supply panel system to ensure the safe, reliable and healthy operation of the railway signal power supply panel system. Summary of the invention

[0006] The purpose of the present invention is to provide a monitoring device for a railway signal power supply panel system and a railway signal power supply panel system in view of the technical defects existing in the prior art.

[0007] To this end, the present invention provides a monitoring device for a railway signal power supply screen system, including a DC power supply, a temperature acquisition board, a thermistor, a smoke detector and a railway signal power supply screen monitoring unit;

[0008] A DC power supply, whose power supply output terminal is connected to the power supply input terminal of the temperature acquisition board, and is used to provide working power to the temperature acquisition board;

[0009] The temperature acquisition board is provided with a plurality of analog quantity sampling channels and a plurality of switch quantity sampling channels, wherein the analog quantity sampling channels are connected to thermistors, and the switch quantity sampling channels are connected to smoke detectors;

[0010] The communication output terminal of the temperature acquisition board is connected to the communication input terminal of the original railway signal power supply screen monitoring unit of the railway signal power supply screen system through the RS485 communication bus;

[0011] The temperature acquisition board is used to collect the temperature data of the thermistor temperature probe installation location and the smoke alarm information of the smoke detector installation location in real time through the thermistor temperature probe, and send the temperature data and smoke alarm information to the railway signal power supply screen monitoring unit through the RS485 communication bus;

[0012] Railway signal power supply screen monitoring unit, used to receive temperature data and smoke alarm information sent by the temperature acquisition board, and display and store them in real time;

[0013] Wherein, a wire ear fixing head is provided at the end of the temperature probe of at least one thermistor;

[0014] The wire ear fixing head is provided with a circular fixing hole;

[0015] The temperature probe of the thermistor has a wire ear fixed head, which is installed at the screw of the original busbar of the railway signal power supply panel system;

[0016] After the screw passes through the fixing hole on the wire ear fixing head, it is threadedly fixedly connected with the original internal thread hole on the busbar;

[0017] Thermistor temperature probe used to monitor the busbar temperature.

[0018] In addition, the present invention also provides a railway signal power supply screen system, which includes the monitoring device of the railway signal power supply screen system as described above.

[0019] It can be seen from the technical solution provided by the present invention that, compared with the prior art, the present invention provides a monitoring device for a railway signal power supply panel system and a railway signal power supply panel system, which are scientifically designed and can monitor the temperature and smoke information of key components and key parts in the railway signal power supply panel system in real time and perform abnormal alarms, that is, they can monitor the railway signal power supply panel system for fire hazards, thereby ensuring the safe, reliable and healthy operation of the railway signal power supply panel system, which has great practical significance.

[0020] By applying the monitoring device of the present invention, the temperature of key components and key parts (such as cables, buses, and transformer cores) such as the railway signal power supply panel, UPS, and battery pack included in the railway signal power supply panel system can be monitored, and smoke information can be collected, displayed, and alarmed, and data information can be uploaded to the railway signal power supply panel monitoring unit in real time. Therefore, the monitoring device of the present invention can play a key role in ensuring the safe, reliable, and healthy operation of the railway signal power supply system. BRIEF DESCRIPTION OF THE DRAWINGS

[0021] Figure 1 A structural block diagram of a monitoring device for a railway signal power supply panel system provided by the present invention;

[0022] Figure 2 A monitoring device for a railway signal power supply panel system provided by the present invention, a structural block diagram of Embodiment 1;

[0023] Figure 3 This is a structural block diagram of the second embodiment of the monitoring device for the railway signal power supply panel system provided by the present invention. DETAILED DESCRIPTION

[0024] The following will be combined with the drawings in the embodiments of the present invention to clearly and completely describe the technical solutions in the embodiments of the present invention. Obviously, the described embodiments are only part of the embodiments of the present invention, not all of the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the present invention.

[0025] In the description of the present invention, it should be understood that the terms "center", "longitudinal", "lateral", "length", "width", "thickness", "up", "down", "front", "back", "left", "right", "vertical", "horizontal", "top", "bottom", "inside", "outside", "clockwise", "counterclockwise" and the like indicate orientations or positional relationships based on the orientations or positional relationships shown in the accompanying drawings, and are only for the convenience of describing the present invention and simplifying the description, and do not indicate or imply that the referred device or element must have a specific orientation, be constructed and operated in a specific orientation, and therefore should not be understood as a limitation on the present invention.

[0026] In the description of this patent, it should be noted that, unless otherwise clearly specified and limited, the terms "installed", "connected", "connected", and "set" should be understood in a broad sense, for example, it can be fixedly connected or set, or it can be detachably connected or set, or connected or set in one piece. For ordinary technicians in this field, the specific meanings of the above terms in this patent can be understood according to specific circumstances.

[0027] In addition, the terms "first" and "second" are used for descriptive purposes only and should not be understood as indicating or implying relative importance or implicitly indicating the number of the indicated technical features. Therefore, the features defined as "first" and "second" may explicitly or implicitly include one or more of the features. In the description of the present invention, the meaning of "plurality" is two or more, unless otherwise clearly and specifically defined.

[0028] See also Figure 1 , the present invention provides a monitoring device for a railway signal power supply screen system, comprising: a DC power supply 100, a temperature acquisition board 200, a thermistor 300, a smoke detector 400 and a railway signal power supply screen monitoring unit 500;

[0029] A DC power supply 100, whose power supply output terminal is connected to the power supply input terminal of the temperature acquisition board 200, is used to provide working power to the temperature acquisition board 200;

[0030] The temperature acquisition board 200 is provided with a plurality of analog quantity sampling channels and a plurality of switch quantity sampling channels, wherein the analog quantity sampling channel is connected to the thermistor 300, and the switch quantity sampling channel is connected to the smoke detector 400;

[0031] The communication output terminal of the temperature acquisition board 200 is connected to the communication input terminal of the original railway signal power supply screen monitoring unit 500 of the railway signal power supply screen system through the RS485 communication channel (i.e., RS485 communication bus);

[0032] The temperature acquisition board 200 is used to collect the temperature data of the temperature probe installation position of the thermistor 300 and the smoke alarm information of the installation position of the smoke detector 400 in real time through the temperature probe of the thermistor 300, and send the temperature data and the smoke alarm information to the railway signal power supply screen monitoring unit 500 through the RS485 communication channel (i.e., RS485 communication bus);

[0033] The railway signal power supply screen monitoring unit 500 is used to receive the temperature data and smoke alarm information sent by the temperature acquisition board 200, and display and store them in real time.

[0034] In the present invention, in specific implementation, the DC power supply 100 is preferably a DC24V DC power supply.

[0035] In the present invention, in a specific implementation, the multiple (for example, sixteen) analog sampling channels at the back end of the temperature acquisition board 200 are respectively connected to a temperature probe of a thermistor 300;

[0036] The temperature acquisition board 200 has multiple (eg four) switch quantity sampling channels at the rear end, each of which is connected to a smoke detector 400 (specifically, a detection information output terminal).

[0037] It should be noted that the temperature acquisition board 200 can set its own communication address, communicate with the railway signal power supply screen monitoring unit 500 through the RS485 communication channel, and upload monitoring data and alarm information to the railway signal power supply screen monitoring unit 500.

[0038] In specific implementation, the temperature acquisition board 200 is a PCB circuit board with a single-chip microcomputer as the core control, and is a mature finished temperature acquisition board with popular application. The single-chip microcomputer can be the STM32F1 series single-chip microcomputer of ST company. The temperature acquisition board 200 can be a temperature acquisition board model WDCJB produced by Tianjin Railway Signal Co., Ltd., which is used to collect temperature information and smoke detection information.

[0039] For specific implementation, see Figure 2 As shown, temperature probes of multiple thermistors 300 are fixed to multiple vertically distributed cables of the railway signal power supply screen system through heat shrink tubes to monitor the cable temperature;

[0040] When the bottom ends of the wiring terminals of the multiple cables are connected to the same original wiring terminal row in the railway signal power supply screen system (i.e., the wiring terminal row is located below the cables), or when the top ends of the wiring terminals of the multiple cables are connected to the same original wiring terminal row in the railway signal power supply screen system (i.e., the wiring terminal row is located above the cables), the temperature probe of the thermistor 300 and the original cables of the railway signal power supply screen system are both covered with hollow heat shrink tubes on the outside;

[0041] The heat shrink tube is used to make the temperature probe of the thermistor 300 closely contact with the original cables of the railway signal power supply panel system.

[0042] Furthermore, for multiple cables connected to the same terminal block, when the original multiple cables of the railway signal power supply screen system are distributed from top to bottom and are connected to the terminal block through the terminals at the bottom or top of the cables, the temperature probe of the thermistor 300 is set on the front or rear side of the original cable of the railway signal power supply screen system, and the installation heights of the temperature probes of multiple thermistors are the same, that is, for multiple cables connected to the same terminal block, the temperature probes of multiple thermistors on the multiple cables are at the same distance from the terminal block below the cables.

[0043] It should be noted that, in specific implementation, the temperature probe is heat-shrunk at the position of the printed sleeve close to the cable (specifically, the side of the printed sleeve close to the cable that is away from the cable terminal), and the printed sleeves are pushed to the root of the cable terminal. For multiple cables connected to the same terminal block, the temperature probes on the multiple cables are kept at the same level from the cable terminals (i.e., the terminals for docking with the terminal block), which is both aesthetically pleasing and can reduce the temperature difference caused by different heights. It should be noted that the rear end of the terminal block to which the cable is connected is used to connect high-power signal equipment, so the cable is prone to heat.

[0044] It should be noted that each cable is covered with a printed sleeve (a hollow cylindrical tube) with text written on it to identify the cable and to distinguish the cables. It is located near the root of the cable terminal. The printed sleeve is different from the heat shrink tube. The heat shrink tube is used for fixing the temperature probe and fixing the temperature probe on the cable.

[0045] For specific implementation, see Figure 2 As shown, when the temperature probes of multiple thermistors 300 are placed inside the original vertically distributed wire duct of the railway signal power supply screen system, the wires of the temperature probes of multiple thermistors are tied together (through cable ties) with the vertically distributed wires (i.e. cables) inside the wire duct to prevent the temperature probes from falling off, and the temperature probes of multiple thermistors are fixed at the same height and placed in the wire handle, which is conducive to reducing the temperature difference caused by different heights. It should be noted that one end (upper or lower end) of the wire (i.e. cable) inside the wire duct is connected to the terminal block, and the rear end of the terminal block is used to connect high-power signal equipment, so the wire (i.e. cable) inside the wire duct is a cable that is easy to heat up.

[0046] For specific implementation, see Figure 2 As shown, at least one thermistor 300 temperature probe is provided with a magnetic block (i.e., a strong magnet block) at the end thereof, which is fixed to the original transformer core of the railway signal power supply screen system by magnetic attraction, and the thermistor temperature probe is used to monitor the temperature of the transformer core;

[0047] The wires of the temperature probe of the thermistor 300 are tied together (by a cable tie) with the wires of the transformer.

[0048] It should be noted that, for the present invention, the temperature probe on the transformer adopts a wire ear fixed head, or a magnetic suction type. The temperature probe is magnetically sucked to the transformer core, installed near the transformer terminal, and the wire is tied into a bundle with the transformer wire;

[0049] For specific implementation, see Figure 2As shown, at least one of the thermistor 300 temperature probes is provided with a wire ear fixing head at its end;

[0050] The wire ear fixing head is provided with a circular fixing hole;

[0051] The temperature probe of the thermistor has a wire ear fixed head, which is installed at the screw of the original busbar of the railway signal power supply panel system;

[0052] After the screw passes through the fixing hole on the wire ear fixing head, it is threadedly fixedly connected with the original internal thread hole on the busbar;

[0053] Thermistor 300 temperature probe is used to monitor the temperature of the busbar.

[0054] It should be noted that, for the present invention, the temperature probe of the thermistor can be fixed on the busbar by means of a wire ear to monitor the temperature of the busbar. The temperature probe is installed at the busbar screw, which is consistent with the wiring method of other busbar wires.

[0055] In the present invention, for specific implementation, see Figure 3 As shown, a plurality of smoke detectors 400 are respectively installed on the top of the original railway signal power supply screen 600 of the railway signal power supply screen system, the top of the battery cabinet for placing the battery pack 800 inside, and the fan outlet of the uninterruptible power supply (UPS) 700;

[0056] The smoke detector is used to detect that the installation location thereof is abnormal (i.e., there is smoke or flame), and transmit the smoke alarm information (specifically the switch alarm signal) to the temperature acquisition board 200 through the switch sampling channel it has. The temperature acquisition board 200 then transmits the smoke alarm information to the railway signal power supply screen monitoring unit 500 through the RS485 communication channel.

[0057] In the present invention, in specific implementation, the railway signal power supply screen monitoring unit 500 is a mature unit in the prior art and has been promoted and applied in the existing railway signal power supply screen system. The railway signal power supply screen monitoring unit 500, for example, can adopt the railway signal power supply screen monitoring unit of model JDT produced by Tianjin Railway Signal Co., Ltd., which is used to monitor the information of the railway signal power supply screen, UPS information, and battery pack in real time, and display, store, alarm, upload data, etc.

[0058] In the present invention, in terms of specific implementation, the existing railway signal power supply screen system is a system with mature existing technology and has been widely used. For example, it can be a PK-type power supply screen system produced by Tianjin Railway Signal Co., Ltd., which is mainly composed of railway signal power supply screens, UPS (Uninterruptible Power Supply), battery packs and other high-power power supply equipment, which is used to power various signal equipment.

[0059] Based on the monitoring device of the railway signal power supply screen system provided by the present invention, the present invention further provides a railway signal power supply screen system, which includes the monitoring device of the railway signal power supply screen system as described above.

[0060] Compared with the prior art, the monitoring device for the railway signal power supply screen system provided by the present invention has the following beneficial effects:

[0061] 1. The application of the present invention is helpful to make up for the blind spot of temperature monitoring of railway signal power supply screen system.

[0062] 2. By combining the design of the present invention with the railway signal power supply screen monitoring unit, temperature monitoring, smoke collection, display, and alarm can be performed, and the information can be uploaded to the railway signal system for centralized monitoring.

[0063] 3. Various temperature monitoring devices (i.e. thermistors) are integrated into the existing, finished railway signal power supply screen system, which simplifies the hardware system and saves installation space.

[0064] The above is only a preferred embodiment of the present invention. It should be pointed out that for ordinary technicians in this technical field, several improvements and modifications can be made without departing from the principle of the present invention. These improvements and modifications should also be regarded as the scope of protection of the present invention.

Claims

1. The monitoring device of the railway signal power supply screen system is characterized in that: It comprises a direct current power supply (100), a temperature acquisition board (200), a thermistor (300), a smoke detector (400) and a railway signal power supply screen monitoring unit (500); A direct current power supply (100), whose power supply output end is connected to the power supply input end of the temperature acquisition board (200) and is used to provide working power to the temperature acquisition board (200); The temperature acquisition board (200) is provided with a plurality of analog quantity sampling channels and a plurality of switch quantity sampling channels, wherein the analog quantity sampling channels are connected to the thermistor (300), and the switch quantity sampling channels are connected to the smoke detector (400); The communication output end of the temperature acquisition board (200) is connected to the communication input end of the original railway signal power supply screen monitoring unit (500) of the railway signal power supply screen system through an RS485 communication bus; The temperature acquisition board (200) is used to collect temperature data of the temperature probe installation position of the thermistor (300) and smoke alarm information of the installation position of the smoke detector (400) in real time through the temperature probe of the thermistor (300), and send the temperature data and smoke alarm information to the railway signal power supply screen monitoring unit (500) through the RS485 communication bus; A railway signal power supply screen monitoring unit (500) is used to receive temperature data and smoke alarm information sent by the temperature acquisition board (200), and to display and store the information in real time; Wherein, a wire ear fixing head is provided at the end of the temperature probe of at least one thermistor (300); The wire ear fixing head is provided with a circular fixing hole; The temperature probe of the thermistor has a wire ear fixed head, which is installed at the screw of the original busbar of the railway signal power supply panel system; After the screw passes through the fixing hole on the wire ear fixing head, it is threadedly fixedly connected with the original internal thread hole on the busbar; Thermistor (300) temperature probe is used to monitor the temperature of the busbar.

2. The monitoring device for the railway signal power supply screen system according to claim 1, characterized in that: The temperature acquisition board (200) has multiple analog quantity sampling channels at the rear end, each of which is connected to a temperature probe of a thermistor (300); The temperature acquisition board (200) has multiple switch quantity sampling channels at the rear end, each of which is connected to a smoke detector (400).

3. The monitoring device for the railway signal power supply screen system according to claim 1, characterized in that: A plurality of thermistor (300) temperature probes are fixed to a plurality of vertically distributed cables of the railway signal power supply screen system through heat shrink tubes, respectively, for monitoring the cable temperature; When the bottom ends of the wiring terminals of the plurality of cables are connected to the same wiring terminal row originally in the railway signal power supply screen system, or when the top ends of the wiring terminals of the plurality of cables are connected to the same wiring terminal row originally in the railway signal power supply screen system, the outer sides of the temperature probe of the thermistor (300) and the original cables of the railway signal power supply screen system are both covered with hollow heat shrink tubes; The heat shrink tube is used to make the temperature probe of the thermistor (300) closely contact with the original cable of the railway signal power supply screen system.

4. The monitoring device for the railway signal power supply screen system according to claim 3, characterized in that: For multiple cables connected to the same terminal block, when the multiple cables are distributed from top to bottom and connected to the terminal block via the wiring terminals at the bottom or top of the cables, the temperature probe of the thermistor (300) is arranged at the front side or the rear side of the original cable of the railway signal power supply screen system, and the installation heights of the temperature probes of the multiple thermistors are the same.

5. The monitoring device for the railway signal power supply screen system according to claim 1, characterized in that: When the temperature probes of the multiple thermistors (300) are placed inside the original vertically distributed wire duct of the railway signal power supply screen system, the wires of the temperature probes of the multiple thermistors are respectively tied together with the vertically distributed wires inside the wire duct, and the temperature probes of the multiple thermistors are fixed at the same height.

6. The monitoring device for the railway signal power supply screen system according to claim 1, characterized in that: A magnetic block is provided at the end of a temperature probe of at least one thermistor (300), which is fixed on the original transformer core of the railway signal power supply screen system by magnetic attraction, and the temperature probe of the thermistor is used to monitor the temperature of the transformer core; The wire of the temperature probe of the thermistor (300) is bound together with the wire of the transformer.

7. The monitoring device for the railway signal power supply panel system according to any one of claims 1 to 6, characterized in that: A plurality of smoke detectors (400) are respectively installed on the top of an existing railway signal power supply screen (600) of the railway signal power supply screen system, the top of a battery cabinet for placing a battery pack (800) therein, and the fan outlet of an uninterruptible power supply (700); The smoke detector is used to transmit smoke alarm information to a temperature acquisition board (200) through a switch quantity sampling channel when detecting an abnormality in the installation position thereof. The temperature acquisition board (200) then transmits the smoke alarm information to a railway signal power supply screen monitoring unit (500) through an RS485 communication channel.

8. The monitoring device for the railway signal power supply panel system according to any one of claims 1 to 6, characterized in that: The DC power supply (100) is a DC24V DC power supply.

9. Railway signal power supply screen system, characterized in that: A monitoring device for a railway signal power supply panel system comprising the device described in any one of claims 1 to 8.

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