CN202309220U - Failure alarming wireless transmission monitoring device for railway low-voltage distribution box - Google Patents

Abstract

The utility model provides a wireless transmission monitoring device for a fault alarm of a railway low-voltage power distribution box. The monitoring device is mainly composed of a housing, a left side panel, a right side panel, a control circuit board assembly and auxiliary parts. It is mainly used in the field of electrified rail transit power communication, providing a power distribution fault alarm, automatic wireless transmission of information and data setting and processing functions. The effect of the utility model is that the device can monitor the operating state of the low-voltage distribution voltage of railway power in real time, automatically record the voltage state, record the maximum and minimum values of the voltage and the duration, the number of times of power transmission and the time of power failure, and can save 24 hours of recorded data; with a good interface, the recorded data can be obtained through USB, and the fault information can be notified to the power supply department in time through GSM. Complete the setting of the device parameters through the special file on the U disk, change the operating mode of the device and realize the corresponding operation. The device has powerful functions, small size and light weight, and can be widely used in electrified railway power distribution and communication systems.

Description

Railway low-voltage distribution box fault alarm wireless transmission monitoring device

technical field

The utility model relates to a fault alarm monitoring device, in particular to a fault alarm wireless transmission monitoring device for a railway low-voltage power distribution box.

Background technique

With the advent of the railway high-speed era, high technical requirements are put forward for the safety and reliability of railway power communication power supply and signal machine power supply. In order to ensure the normal operation of railway power communication equipment and signal equipment, protect people's lives and property safety, and ensure the power quality of power communication power and signal power, it is of great importance to monitor them in real time.

The existing railway management system and technical means cannot effectively monitor the power distribution of electric communication power supply and signal machine power supply. In the current structure, when the power supply is interrupted, the power supply department cannot be notified in time, and accident repairs and accident analysis are often not completed in time. The railway power supply section that supplies power to the signal machine is in an unfavorable passive situation because it cannot fully grasp the real-time information of the power supply. Due to the lack of distribution voltage monitoring and recording information, after a power outage accident, the cause of the accident and the responsibility for the accident are not clear. More importantly, because the real cause of the power outage cannot be found, corresponding measures cannot be taken, and similar faults or accidents cannot be prevented from happening again. , leaving a security risk. Therefore, the development of a monitoring device suitable for railway low-voltage power distribution is of great importance and cannot be waited for.

Contents of the invention

In order to solve the above technical problems, the purpose of this utility model is to provide a wireless transmission monitoring device for railway low-voltage power distribution box fault alarm, so as to facilitate and reliably realize the effective monitoring of power communication power supply and signal machine power distribution.

In order to achieve the purpose of the invention, the utility model provides a wireless transmission monitoring device for railway low-voltage distribution box fault alarm, wherein: the monitoring device includes a housing, a left side panel, a right side panel, a control circuit board assembly, and a device terminal; The body is connected with the left side board and the right side board through bolts, and the control circuit board assembly is plugged into the slot in the housing, and the device terminal electrically connected to the control circuit board assembly is connected to the outside of the left side board through bolts; The outside of the board is provided with an indicator light, a USB interface and a transmitting antenna electrically connected to the control circuit board assembly; the terminal of the device connected to the power signal transmits the detected fault signal to the control circuit board assembly, and the GSM communication module in the control circuit board assembly passes through The sending antenna sends, through the U disk with automatic information collection function inserted at the USB interface, the fault monitoring information in the U disk read-write module in the control circuit board assembly can be automatically transferred to the U disk.

The effect of the utility model is to complete a set of special recording devices capable of real-time monitoring of power distribution and power supply of railway systems. The device can record the voltage information of the power supply and provide a USB interface. The staff can automatically realize the setting of parameters and write the stored information into the designated special file of the U disk through the USB interface of the device. In order to facilitate the production scheduling PC or related microcomputers to read relevant data and realize the alignment, its convenient advantages are more obvious. When the power supply fails, it can record the fault information and automatically send SMS to the mobile phone of the production dispatching department or other relevant management department personnel through GSM in time to inform the power distribution fault information in time, so that the relevant departments of the power supply section can take timely measures to eliminate the fault Rapid restoration of normal power supply, thereby ensuring the safety of the railway system, has played an important role in normal operation.

The utility model is applicable to systems such as electric communication power supply and signal machine power distribution system, and the beneficial effects produced are as follows:

1. The overall size of the monitoring device is 150mm (length) × 150mm (width) × 62mm (height). It is compact in design, light in weight, small in size, saves space, easy to install and use, simple to operate, and beautiful in appearance.

2. Due to the reliability of product performance, on-site inspection work can be greatly reduced. Once a power supply failure occurs, the monitoring device can timely and accurately determine the time and location of the failure, which improves the efficiency of problem solving and reduces losses caused by power distribution failures.

3. It can record the maximum, minimum and duration of the voltage, the number of times of power failure and power failure time, and can save the recorded data for 24 hours; it has a good interface, can obtain the recorded data through USB, and can use GSM to report the fault The information shall be notified to the power supply department in time. Complete the setting of the device parameters through the special file on the U disk, change the operating mode of the device and realize the corresponding operation. The device has powerful functions, small size and light weight, and can be widely used in electrified railway power distribution and communication systems.

Description of drawings

Fig. 1 is the profile plan view of monitoring device of the present utility model;

Fig. 2 is the internal front view of the monitoring device of the present utility model;

Fig. 3 is the profile side view of the monitoring device of the present invention;

Fig. 4 is a system frame diagram of the monitoring device of the present invention.

In the picture:

1. Housing 2. Left side panel 3. Right side panel

4. Control circuit board components 5. Device terminals 6. Indicator lights

7. USB interface 8. Sending antenna

Detailed ways

The structure and performance of the automatic wireless transmission and monitoring device for railway low-voltage power distribution fault alarm of the present utility model are specifically described in conjunction with the accompanying drawings.

The utility model relates to a fault alarm wireless transmission monitoring device for railway low-voltage power distribution boxes. It is integrated with the left side plate 2 and the right side plate 3, and the control circuit board assembly 4 is plugged into the slot in the housing 1, and the outside of the left side plate 2 is connected with a device electrically connected to the control circuit board assembly 4 by bolts Terminal 5; the outside of the right side panel 3 is provided with an indicator light 6, a USB interface 7 and a transmitting antenna 8 electrically connected to the control circuit board assembly 4; the terminal 5 of the device connected to the power signal transmits the detected fault signal to the control circuit board assembly 4. The GSM communication module in the control circuit board assembly 4 is sent through the transmitting antenna 8, and the U disk in the control circuit board assembly 4 can be read and written by the U disk with the function of automatically collecting information inserted at the USB interface 7. The fault monitoring information in the computer is automatically transferred to the U disk.

The control circuit board assembly 4, the device terminal 5, the indicator light 6, the USB interface 7, the transmitting antenna 8 and the left and right side panels are installed in the housing 1 at the same time, and the indicator light 6 indicates whether the device is in a working state and whether the device has a network The indicator light of the signal and whether the device is in the signal sending state.

The main technology of the wireless transmission monitoring device for railway low-voltage power distribution box failure alarm is to use GSM communication means to send the monitored and processed data to each mobile phone designated by power supply production scheduling in the form of short messages. It can accurately record the start and end time of power outages and alarms, and automatically send them to relevant departments. The recording time can be accurate to the second.

The function of the automatic wireless transmission monitoring device for railway low-voltage power distribution fault alarm of the utility model is realized in this way:

As shown in Figure 1-4, the structure of the automatic wireless transmission and monitoring device for railway low-voltage power distribution fault alarm of the present utility model is: the device fixes the control circuit board assembly 4 on the housing 1 through the left side board 2 and the right side board 3 Among them, a device terminal 5 is reserved on the left side panel 2, and the device terminal 5 is used to access the device power supply and the detected line signal. On the right side panel 3, there are device indicator light 6, USB interface 7, transmitting antenna 8. The indicator light 6 indicates whether the device is in working state, whether the device has a network signal, and whether the device is in the signal sending state. The USB interface 7 can be connected with a USB flash drive with the function of automatically collecting information, and the fault information can be automatically transferred to the USB flash drive, so that the computer can process the fault information later. The transmitting antenna 8 can automatically transmit the detected fault signal to the mobile phone or information center through GSM or GPRS, so that the staff can know the fault signal at the first time.

As shown in Figure 4, the voltage sampling module a is used to detect the two-way three-phase four-wire railway low-voltage power distribution voltage signal. After the voltage is input, the harmonic and interference signals are filtered out through the low-pass filter device; In the real-time process control system of the whole device, the real-time data is processed and controlled; the U disk read-write module c is used for parameter setting of the device, and at the same time reads the relevant data stored through the USB interface; the fixed value comparison logic module d is used for It is used to compare the sampled data with the preset data; the power loss control logic module e is used to judge whether there is a short circuit or open circuit in the circuit; the power module f is used to provide voltage sampling module, control chip, U disk read-write module and The wireless communication module provides power to ensure the normal operation of the device; the non-volatile memory g is used for the device to store data information when there is no power supply; the wireless communication module h is used for the device to transmit monitoring information to the information via GSM or GPRS center.

During the operation of the whole system, the voltage input is passed through the low-pass filter, then the AC sampling is transmitted to the DSP chip, and then the data is stored in the non-volatile memory. After the non-volatile memory is read and written by the fixed value and sent to the fixed value comparison logic, It reaches the wireless communication module, and finally converts it into a short message signal and sends it to the information center. After AC sampling, the given value comparison logic has a sampling data input signal to provide data comparison; the U disk read-write module is connected to the middle end of the DSP chip at the same time, and the U disk read-write module is used to receive files in the U disk or send files to In the U disk; the output terminal of the U disk read-write module is connected with a sampling calibration, and the information is transferred to the non-volatile memory through sampling calibration; at the same time, there is a time calibration connected to the wireless communication module at the output end of the U disk read-write module ; Power-off control logic is added to the customized comparison logic and wireless communication module, which can output a shutdown signal; each link in the entire system operation process needs a power module to provide the required power for the system.

The device detects two-way three-phase voltage signals. When the voltage is input, it filters out harmonics and interference signals through a low-pass filter device, and then compares the sampled data with the preset data through a fixed value comparison logic device. If the voltage exceeds the preset The value will be sent to the information center and the mobile phone of the on-duty maintenance personnel through wireless communication alarm and GSM text message. At the same time, the event will be written into the U disk read-write module c through the non-volatile memory g, so that the data can be read and written by the U disk in the future. If it does not exceed the preset value, it is determined whether the current sampling value should be stored according to the set data storage interval, and if it should be stored, it is written into the U disk read-write module c through the non-volatile memory g. When the circuit is short-circuited or disconnected, the voltage will be abnormal. At this time, the sampling data will be judged by the power-off control logic and send a shutdown signal to the information center through wireless communication, so that the information center can schedule and eliminate line faults in time, and at the same time complete the storage of information . When the device is in the working state, it will automatically detect whether there is a U disk device inserted into its USB interface, and if so, it will light up the running indicator and automatically complete the read and write operations on the U disk.

First read the parameter setting file on the U disk and complete the setting of time and date, upper and lower voltage limit values, mobile phone numbers for sending information, timing sending information, device working mode setting, and data storage interval through the U disk reading and writing module c (That is, the detection voltage range of each phase voltage input shall not be greater than 400V, the adjustment range of the data storage interval is 0.15 to 1 minute, and the adjustment step is 1 second.) and other content setting and updating, until the next U disk setting file is detected Until the parameter setting value of the device is changed; then write the storage record information in the device into the file specified by the U disk, after the operation is completed, the device automatically closes the operation on the U disk, and the signal indicator 6 goes out. The data read from the U disk can be analyzed by the special analysis software to obtain the distribution operation status of the monitored power supply and the analysis of the power quality of the power supply. The monitoring device itself does not have any operation buttons, and the operation of the device is realized through the special parameter setting file on the U disk. The staff can carry the U disk through the USB interface of the device without any additional operation, and the setting of the working parameters of the device can be realized automatically. It is particularly convenient and safe for the acquisition and operation of monitoring data of power distribution devices scattered along the power line, especially for mountainous power, where the convenience advantage is more obvious. The device is installed in the distribution box, and its power supply is taken from the railway low-voltage power distribution one-phase power supply, and the working voltage of each module of the device is obtained through rectification and voltage division. The entire device must be within the coverage of the telecommunication signal to send an alarm message, otherwise the data can only be recorded in the device and dumped with a U disk.

The automatic wireless transmission monitoring device for railway low-voltage power distribution fault alarm of the utility model combines multiple advanced technologies to complete a set of special recording devices capable of real-time monitoring of power distribution and power supply, which solves the practical problems of railway power distribution monitoring. The real-time monitoring of railway power communication power supply and signal machine power supply will greatly reduce the fault handling time and restore power supply as soon as possible, improving the power supply level of the railway system, thereby ensuring the power quality of power communication power supply and signal machine power supply, and ensuring railway power communication equipment and the normal operation of signaling equipment. The device has a wide range of applications, can effectively ensure the safe production of the railway, and greatly improve social and economic benefits.

Claims (2)

1. railway low-tension distribution box fault alarm wireless transmission monitoring device, it is characterized in that: this monitoring device includes housing (1), left plate (2), right plate (3), control circuit board component (4), device terminals (5); Housing (1) connects as one through bolt and left plate (2), right plate (3), and control circuit board component (4) is plugged in the slot in the housing (1), and left plate (2) outside is connected with the device terminals (5) that is electrically connected with control circuit board component (4) through bolt; Right plate (3) outside is provided with indicator light (6), USB interface (7) and the transmitting antenna (8) that is electrically connected with control circuit board component (4); The device terminals (5) that inserts power supply signal will monitor fault-signal and be transferred to control circuit board component (4); GSM communication module in the control circuit board component (4) sends through transmitting antenna (8); Through the USB flash disk of locating to insert at USB interface (7) that has automatic Information Monitoring function, can the malfunction monitoring information in the USB flash disk module for reading and writing in the control circuit board component (4) be dumped in the USB flash disk automatically.

2. railway low-tension distribution box fault alarm automated wireless transmitting supervisory device according to claim 1; It is characterized in that: control circuit board component (4), device terminals (5), indicator light (6), USB interface (7), transmitting antenna (8) and left and right sides plate are contained in the housing (1) simultaneously, said indicator light (6) for device whether in working order, whether device have network signal, device whether at the indicator light of signal transmit status.

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