Temperature and humidity monitoring system for box-type transformer substation in flight area

Abstract

The utility model discloses a temperature and humidity monitoring system for a box-type substation in a flying area, which comprises an upper computer system and a lower computer system, the upper computer system and the lower computer system are connected through a communication management unit, and the lower computer system comprises an inductive probe, a temperature and humidity sensing unit and a data conversion unit which are sequentially connected. When the device is applied, the inductive probes and the temperature and humidity sensors are installed in the UPS battery cabinet and the box transformer box of the flying area box-type substation to acquire temperature and humidity information in the UPS battery cabinet and the box transformer box and transmit the temperature and humidity information to the upper computer system, and the temperature and humidity in the UPS battery cabinet and the box transformer box are remotely monitored through the upper computer system. Therefore, the service life of the box-type substation is guaranteed, the service life of UPS equipment is prolonged, potential safety hazards are reduced, the equipment guarantee level is improved, and cost including but not limited to labor cost, equipment fault cost and fuel cost is saved.

Description

TECHNICAL FIELD

[0001] The utility model relates to apron substation technical field, concretely is a flight area box type substation temperature and humidity monitoring system. BACKGROUND

[0002] In the apron substation technical field in China, the stable operation of the flight area box type substation is directly related to the stability and safety of apron power supply. With the growth of air transportation demand, the airport puts forward higher requirements for power guarantee, which forces the airport operation and management department to strengthen the management and control of the equipment, reduce the equipment failure rate, and improve the overall operation efficiency of the apron. The safe operation of the flight area box type substation equipment is affected by environmental factors such as indoor temperature and humidity, and there are many problems at present, for example: the temperature of the box type substation is higher in summer, the humidity of the box type substation is larger in winter, and the air conditioner fails more frequently. Since the launch of the flight, it has been found that the equipment failure caused by environmental reasons has occurred many times; in addition, if the fault is not disposed in time, the UPS will bulge and leak when the temperature is too high, which will affect the service life of the UPS battery or the normal operation of the equipment, and in severe cases, a fire may occur, affecting the overall operation safety of the apron.

[0003] The utility model patent with the patent number CN217561927U authorizes a substation environment monitoring system, proposes a substation environment monitoring system technology, contains temperature acquisition correction circuit, and the technical scheme of temperature control is carried out through multiple operational amplifier circuits and resistance connection, solves the problem of poor stability of substation environment temperature monitoring in the prior art.

[0004] However, the above-mentioned patent only has temperature monitoring function, lacks humidity monitoring function, and at the same time, because of the particularity of the apron flight area box type substation, the box type substation is widely distributed, the signal transmission is easily affected, and the temperature and humidity conditions of the flight area box type substation need to be displayed in real time. The circuit part of this patent is not suitable for this situation, and lacks real-time box type substation temperature and humidity curve display of the upper computer, cannot realize intelligent remote monitoring, and achieves the best effect. UTILITY MODEL CONTENTS

[0005] The utility model aims at overcoming the deficiencies in the prior art, and provides a flight area box type substation temperature and humidity monitoring system, which collects the temperature and humidity information in the UPS battery cabinet and the box type substation box by installing the inductive probe and the temperature and humidity sensor in the UPS battery cabinet and the box type substation box in the flight area, and transmits the information to the upper computer system. The temperature and humidity in the UPS battery cabinet and the box type substation box are remotely monitored through the upper computer system, so as to guarantee the service life of the box type substation, improve the service life of the UPS equipment, reduce the safety hidden danger, improve the equipment guarantee level, and save the cost including but not limited to labor cost, equipment failure cost and fuel cost.

[0006] The objective of this utility model is mainly achieved through the following technical solutions:

[0007] A temperature and humidity monitoring system for a prefabricated substation in an airfield includes a host computer system and a slave computer system, which are connected via a communication management unit.

[0008] The lower-level computer system includes a series of sequentially connected sensing probes, a temperature and humidity sensing unit, and a data conversion unit. Two sensing probes are installed, one inside the UPS battery cabinet and the other at the top inside the transformer substation. These probes collect temperature and humidity information from the UPS battery cabinet and the transformer substation, converting this information into resistance signals that are transmitted to the temperature and humidity sensing unit. The temperature and humidity sensing unit converts the resistance signals into electrical signals that the upper-level computer system can recognize, and transmits these electrical signals to the data conversion unit. The data conversion unit transmits these electrical signals to a communication management unit, which in turn transmits them to the upper-level computer system. The upper-level computer system records and displays the electrical signals transmitted by the communication management unit in real time.

[0009] In this application, to monitor the temperature and humidity inside the UPS battery cabinet and transformer box in a prefabricated substation, induction probes and temperature and humidity sensing units are installed inside the UPS battery cabinet and transformer box to detect changes in temperature and humidity in real time. The induction probes are temperature and humidity sensors that convert the temperature and humidity information inside the UPS battery cabinet and transformer box into resistance signals via a variable resistor and transmit them to the temperature and humidity sensing units. The temperature and humidity sensing units convert the resistance signals transmitted by the induction probes into electrical signals that can be recognized by the host computer system and transmit these electrical signals to the host computer system via a data conversion unit and a communication management unit. These electrical signals contain the temperature and humidity information inside the UPS battery cabinet and transformer box. The host computer system records and displays these electrical signals, thereby achieving monitoring of the temperature and humidity information inside the UPS battery cabinet and transformer box.

[0010] In the application, in order to monitor the temperature and humidity information in the UPS battery cabinet and the box transformer box, further, the upper computer system main interface editing file, defining configuration graphics background, and adding temperature and humidity monitoring function page, the temperature between the battery of the UPS battery cabinet, the humidity between the battery, the ambient temperature of the box transformer box, and the humidity in the box transformer box are arranged and outputted, and the real-time temperature and humidity information is displayed in the form of table on the upper computer main interface, so that the staff can check in real time. At the same time, the temperature and humidity monitoring system is established, the trend curve analysis function is added in the temperature and humidity monitoring system, the temperature and humidity change curve of the box transformer station is drawn in one day 0-24 points, the historical temperature and humidity information is recorded, the temperature and humidity historical record curve is formed, and the intelligent alarm function is added. When the threshold value set in advance is exceeded, the alarm function is triggered, and the timeliness of the equipment fault processing of the box transformer station in the flight area is improved. It should be noted that how to edit the graphic file in the upper computer system main interface, define the configuration graphics background, add the temperature and humidity monitoring function page, and establish the temperature and humidity monitoring system and add the intelligent alarm function are all prior art, and will not be described in detail here.

[0011] In the application, in order to monitor the temperature and humidity of multiple box transformer stations in the apron, a lower computer system is arranged in each box transformer station, and the temperature and humidity is monitored through the same upper computer system.

[0012] Further, the lower computer system further comprises a power supply unit for supplying power to the temperature and humidity sensing unit, the data conversion unit and the communication management unit. In the application, the power supply unit is a 24V DC power supply device, which has the ability to convert 220V AC into 24V DC, and is used to supply power to each unit.

[0013] Further, the temperature and humidity sensing unit comprises two temperature and humidity sensors connected with two sensing probes respectively, and the two temperature and humidity sensors are PMC-2601 type. In the application, the temperature and humidity sensor is PMC-2601 series temperature and humidity sensor developed by CET MeasTech Co., Ltd. More specifically, in the application, PMC-2601-D type is used, which realizes power supply and communication in one, so as to optimize the wiring scheme and integrate information transmission and power supply.

[0014] Further, the data conversion unit is an information converter, and the information converter is the information converter of PMC-2601. In the application, the information converter is a signal converter used with PMC-2601 temperature and humidity sensor, which can realize data collection of multiple temperature and humidity signal sensors.

[0015] Further, the communication management unit is a communication management machine, and the communication management machine comprises a communication converter with a model of PMC-2601-G, which is used in cooperation with the temperature and humidity sensor.

[0016] Further, the upper computer system comprises a switch and a computer, the switch is used for realizing data interaction between the communication management unit and the computer, and the computer is used for collecting temperature and humidity information data in the UPS battery cabinet and the box transformer box, so as to realize temperature and humidity monitoring of the UPS battery cabinet and the box transformer box.

[0017] Further, the Modbus communication protocol is adopted for communication between the lower computer system, the lower computer system and the communication management unit, and the communication management unit and the upper computer system. In the application, the Modbus two-bus protocol communication mode is adopted for realizing data transmission between the temperature and humidity sensing unit and the data conversion unit, the Modbus-RTU protocol communication mode is adopted for realizing data transmission between the data conversion unit and the communication management unit, and the Modbus-TCP protocol communication mode is adopted for realizing data transmission between the communication management unit and the upper computer system. In the application, the Modbus communication protocol is adopted for communication, and the half-duplex communication mode is adopted, so that the communication is stable, in addition, the power line and the communication line are combined into one, that is, the power supply and the communication line transmission information, so that the wiring mode is optimized.

[0018] In conclusion, compared with the prior art, the utility model has the following beneficial effects: the utility model installs the inductive probe and the temperature and humidity sensor in the UPS battery cabinet and the box transformer box of the box transformer substation in the flight area, collects the temperature and humidity information in the UPS battery cabinet and the box transformer box, and transmits to the upper computer system, and the temperature and humidity in the UPS battery cabinet and the box transformer box are monitored remotely through the upper computer system, so that the service life of the box transformer substation is guaranteed, the service life of the UPS equipment is improved, the security risk is reduced, the equipment guarantee level is improved, and the cost including but not limited to the labor cost, the equipment fault fee and the fuel cost is saved. BRIEF DESCRIPTION OF DRAWINGS

[0019] The drawings described herein are used to provide further understanding of the embodiments of the utility model, constitute a part of the application, and do not constitute the limitation to the embodiments of the utility model. In the drawings:

[0020] Figure 1 It is the structure block diagram of the embodiment of the utility model. DETAILED DESCRIPTION

[0021] In order to make the purpose, technical scheme and advantages of the utility model more clearly, the utility model is further described in detail below by combining with examples and drawings, the schematic implementation mode and the description of the utility model are only used for explaining the utility model, and do not be regarded as the limitation of the utility model.

[0022] Embodiment

[0023] As Figure 1 Indicated, a kind of flight area box-type substation temperature and humidity monitoring system, including host computer system and lower computer system, the host computer system and lower computer system are connected by communication management unit, wherein,

[0024] The lower computer system includes sequentially connected inductive probe, temperature and humidity sensing unit, data conversion unit;The inductive probe is provided with two, is respectively installed in UPS battery cabinet and inside the top of box transformer box, for collecting the temperature and humidity information in UPS battery cabinet and in box transformer box, and the temperature and humidity information in UPS battery cabinet and in box transformer box is converted into resistance signal and is transmitted to temperature and humidity sensing unit;The temperature and humidity sensing unit is used to convert resistance signal into electric signal that host computer system can recognize, and the electric signal is transmitted to data conversion unit;The data conversion unit is used to transmit the electric signal to communication management unit, and the communication management unit is used to transmit the electric signal to host computer system;The host computer system is used to record and display electric signal transmitted by communication management unit in real time.

[0025] In the application embodiment, in order to monitor the temperature and humidity condition in UPS battery cabinet and box transformer box in box-type substation, inductive probe and temperature and humidity sensing unit are arranged in UPS battery cabinet and box transformer box, for detecting the temperature and humidity change condition in UPS battery cabinet and box transformer box in real time, wherein inductive probe is temperature and humidity inductive probe, and the temperature and humidity information in UPS battery cabinet and box transformer box is converted into resistance signal by variable resistance and is transmitted to temperature and humidity sensing unit, and temperature and humidity sensing unit converts resistance signal transmitted by inductive probe into electric signal that host computer system can recognize, and the electric signal is transmitted to host computer system by data conversion unit and communication management unit, wherein the electric signal includes the temperature and humidity information in UPS battery cabinet and box transformer box;Host computer system records and displays the electric signal, to monitor the temperature and humidity information in UPS battery cabinet and box transformer box.

[0026] In the embodiment of the present application, in order to monitor the temperature and humidity information in the UPS battery cabinet and the box transformer box, further, the upper computer system main interface editing file, defining configuration graphics background, and adding temperature and humidity monitoring function page, the temperature between the UPS battery cabinet, the humidity between the battery, the ambient temperature of the box transformer box, and the humidity in the box transformer box are arranged and outputted, and the real-time temperature and humidity information is displayed on the upper computer main interface in the form of table for the staff to check, at the same time, the temperature and humidity monitoring system is established, the trend curve analysis function is added in the temperature and humidity monitoring system, the temperature and humidity change curve of the box transformer station is drawn in one day 0-24 points as a time period, and the historical temperature and humidity information is recorded to form the temperature and humidity history record curve, and the intelligent alarm function is added, which triggers the alarm function when the threshold value set in advance is exceeded, and the timeliness of the flight area box transformer station equipment fault processing is improved. It should be noted that how to edit the file on the upper computer system main interface, define the configuration graphics background, add the temperature and humidity monitoring function page, establish the temperature and humidity monitoring system, and add the intelligent alarm function are all prior art, and will not be described in detail here.

[0027] In the embodiment of the present application, in order to monitor the temperature and humidity of the plurality of box transformer stations in the apron, the lower computer system is arranged in each box transformer station, and the temperature and humidity is monitored through the same upper computer system.

[0028] Further, the lower computer system further comprises a power supply unit, and the power supply unit is used for supplying power to the temperature and humidity sensing unit, the data conversion unit and the communication management unit. In the embodiment of the present application, the power supply unit is a 24V DC power supply device, which has the ability to convert 220V AC into 24V DC, and is used for supplying power to each unit.

[0029] Further, the temperature and humidity sensing unit comprises two temperature and humidity sensors connected with the two sensing probes respectively, and the two temperature and humidity sensors are PMC-2601.

[0030] Further, the data conversion unit is an information converter, and the information converter is the information converter of PMC-2601. In the embodiment of the present application, the information converter is a signal converter used with the PMC-2601 temperature and humidity sensor, which can realize data collection of multiple temperature and humidity signal sensors.

[0031] Further, the communication management unit is a communication management machine, and the communication management machine comprises a communication converter with a model of PMC-2601-G, which is used in cooperation with the temperature and humidity sensor.

[0032] Further, the upper computer system comprises a switch and a computer, the switch is used to realize data interaction between the communication management unit and the computer, and the computer is used to collect temperature and humidity information data in the UPS battery cabinet and the box transformer box, so as to realize temperature and humidity monitoring of the UPS battery cabinet and the box transformer box.

[0033] Further, the lower computer system, the communication management unit and the upper computer system all adopt Modbus communication protocol communication. In the embodiment of the application, the temperature and humidity sensing unit and the data conversion unit adopt Modbus two-bus protocol communication mode to realize data transmission, the data conversion unit and the communication management unit adopt Modbus-RTU protocol communication mode to realize data transmission, and the communication management unit and the upper computer system adopt Modbus-TCP protocol communication mode to realize data transmission. In the embodiment of the application, Modbus communication protocol is adopted for communication, and half-duplex communication mode is adopted, so that the communication is stable. In addition, power carrier technology is used to combine the power line and the communication line into one, so that the power line can supply power and transmit information as the communication line, and the wiring mode is optimized.

[0034] The above specific embodiments are used to further explain the purpose, technical scheme and beneficial effects of the utility model, and it should be understood that the above description is only a specific embodiment of the utility model, and is not used to limit the protection scope of the utility model. Any modification, equivalent replacement, improvement and the like within the spirit and principle of the utility model should be included in the protection scope of the utility model.

Claims

1. A temperature and humidity monitoring system for a prefabricated substation in an airfield, characterized in that, It includes a host computer system and a slave computer system, which are connected through a communication management unit. The lower-level computer system includes a series of sequentially connected sensing probes, a temperature and humidity sensing unit, and a data conversion unit. Two sensing probes are installed, one inside the UPS battery cabinet and the other at the top inside the transformer substation. These probes collect temperature and humidity information from the UPS battery cabinet and the transformer substation, converting this information into resistance signals that are transmitted to the temperature and humidity sensing unit. The temperature and humidity sensing unit converts the resistance signals into electrical signals that the upper-level computer system can recognize, and transmits these electrical signals to the data conversion unit. The data conversion unit transmits these electrical signals to a communication management unit, which in turn transmits them to the upper-level computer system. The upper-level computer system records and displays the electrical signals transmitted by the communication management unit in real time.

2. The temperature and humidity monitoring system for a prefabricated substation in an airfield according to claim 1, characterized in that, The lower-level system also includes a power supply unit, which supplies power to the temperature and humidity sensing unit, the data conversion unit, and the communication management unit.

3. The temperature and humidity monitoring system for a prefabricated substation in an airfield according to claim 1, characterized in that, The temperature and humidity sensing unit includes two temperature and humidity sensors, which are respectively connected to the two sensing probes. Both temperature and humidity sensors are model PMC-2601.

4. The temperature and humidity monitoring system for a prefabricated substation in an airfield according to claim 3, characterized in that, The data conversion unit is an information converter, and the information converter is a PMC-2601 information converter.

5. The temperature and humidity monitoring system for a prefabricated substation in an airfield according to claim 3, characterized in that, The communication management unit is a communication management machine, which includes a communication converter of model PMC-2601-G. The communication converter is used in conjunction with the temperature and humidity sensor.

6. The temperature and humidity monitoring system for a prefabricated substation in an airfield according to claim 1, characterized in that, The host computer system includes a switch and a computer. The switch is used to realize data interaction between the communication management unit and the computer, and the computer is used to collect temperature and humidity information data in the UPS battery cabinet and the transformer box, so as to realize temperature and humidity monitoring of the UPS battery cabinet and the transformer box.

7. The temperature and humidity monitoring system for a prefabricated substation in an airfield according to claim 1, characterized in that, The Modbus communication protocol is used for communication within the lower-level system, between the lower-level system and the communication management unit, and between the communication management unit and the upper-level system.

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