CN102682567A - Fireproof and antitheft system of transformer substation - Google Patents

Abstract

A substation fire protection and anti-theft system, which includes a central controller, a radio frequency transmitting module, a radio frequency receiving module, a human body infrared sensor, a door switch detection module, a temperature sensor, a smoke sensor, an alarm module, a memory, a display screen, a wireless communication module and The host computer, the radio frequency receiving module, human body infrared sensor, door switch detection module, temperature sensor, smoke sensor, alarm module, memory, display screen and wireless communication module are respectively connected with the central controller, and the radio frequency transmitting module is set On the valuables in the substation, the wireless communication module is connected with the host computer through the wireless network. The invention not only has the alarm function of fire prevention and anti-theft, but also can detect the information of the number of people entering and leaving the station in real time, and transmit the real-time data to the upper computer of the dispatching center through long-distance communication, and save the alarm information in the database for easy query.

Description

Substation fire prevention and anti-theft system

technical field

The invention relates to a substation protection system, in particular to a substation fire protection and anti-theft system.

Background technique

With the continuous deepening of the information construction of the national grid system, the dedicated power communication network has been gradually improved, creating a good prerequisite for various network applications. The establishment of unattended substations has become the focus of the State Grid in recent years. At present, all substations have a "three remote" system. Although it can basically realize the centralized dispatching of the dispatching center and unattended substation equipment, this is only an unattended substation in the traditional sense. It also has personnel intrusion, fire, and equipment safety in the station. , theft, natural disasters, etc.

Contents of the invention

In order to overcome the deficiencies in the prior art above, the technical problem to be solved by the present invention is to provide a substation fire prevention and anti-theft system, which not only has fire prevention and anti-theft alarm function, but also can perform remote monitoring in real time.

The technical solution adopted by the present invention to solve the technical problem is: a fire prevention and anti-theft system for a substation, which is characterized in that it includes a central controller, a radio frequency transmitting module, a radio frequency receiving module, a human body infrared sensor, a door switch detection module, and a temperature sensor , smoke sensor, alarm module, memory, display screen, wireless communication module and host computer, the wireless radio frequency receiving module, human body infrared sensor, door switch detection module, temperature sensor, smoke sensor, alarm module, memory, display screen and wireless The communication modules are respectively connected with the central controller, the radio frequency transmitting module is arranged on the valuables in the substation, and the wireless communication module is connected with the host computer through the wireless network.

Further, the central controller adopts Freescale MC9S12XS128 single-chip microcomputer.

Further, the human body infrared sensor includes a human body infrared probe, a processor and circuits around the processor.

Further, the smoke sensor includes a smoke detection head, a voltage comparator and an operational amplifier, the smoke detection head is connected to the input end of the voltage comparator, and the output end of the voltage comparator is connected to the input end of the operational amplifier, so The output terminal of the operational amplifier is connected with the central controller.

Further, the wireless communication module includes an RS485 interface, a microprocessor and a radio frequency module, the radio frequency is connected to the microprocessor, and the microprocessor is connected to the central controller through the RS485 interface.

Further, a solar panel is also included, and the solar panel provides working power for the system.

Further, the alarm module includes an audible and visual alarm module, a dial alarm module and a voice alarm module.

The beneficial effect of the present invention is that the present invention takes Freescale MC9S12XS128 as the control core, realizes the detection of smoke and human body through the smoke sensor module and the pyroelectric human body infrared module, so as to issue sound and light alarms for fire prevention and anti-theft, and adopts a large storage capacity The memory is used to store the detailed information of fire protection and anti-theft, valuables entering and leaving, and the number of people, which is convenient to call out and check; the PT2262/2272 wireless integrated circuit is used to realize the detection of valuables, which is accurate, and the self-made RS-485 wireless module is used to realize network communication; through The door switch detection module detects the number of people entering and leaving the substation, and collects the temperature in real time through the 18b20 temperature detection module. The invention not only has the alarm function of fire protection and anti-theft, but also can detect the information of the number of people entering and leaving the station in real time, and transmit the real-time data to the upper computer of the dispatching center through long-distance communication, and save the alarm information in the database for easy query.

Description of drawings

The present invention will be further described below in conjunction with accompanying drawing:

Fig. 1 is a block diagram of the present invention;

Fig. 2 is the electrical principle diagram of human body infrared sensor of the present invention;

Fig. 3 is the electrical schematic diagram of the smoke sensor of the present invention;

4 is an electrical schematic diagram of the wireless communication module of the present invention;

Fig. 5 is an electrical schematic diagram of the radio frequency receiving module of the present invention.

Detailed ways

As shown in Fig. 1, a kind of substation fire prevention and anti-theft system of the present invention includes a central controller, a radio frequency transmitting module, a radio frequency receiving module, a human body infrared sensor, a door switch detection module, a temperature sensor, a smoke sensor, an alarm module, a memory , display screen, wireless communication module, host computer and solar panel, the wireless radio frequency receiving module, human body infrared sensor, door switch detection module, temperature sensor, smoke sensor, alarm module, memory, display screen and wireless communication module respectively The central controller is connected, the wireless radio frequency transmitting module is set on the valuables in the substation, the wireless communication module is connected with the host computer through the wireless network; the solar panel provides working power for the system. Wherein, the central controller adopts Freescale MC9S12XS128 single-chip microcomputer; the alarm module includes a sound and light alarm module, a dial alarm module and a voice alarm module.

Fig. 2 is an electrical schematic diagram of the human body infrared sensor of the present invention. As shown in FIG. 2 , the human body infrared sensor of this kind of substation fire prevention and anti-theft system includes a human body infrared probe, a processor and circuits around the processor.

Fig. 3 is an electrical schematic diagram of the smoke sensor of the present invention. As shown in Figure 3, the smoke sensor of this kind of substation fire prevention and anti-theft system includes a smoke detection head, a voltage comparator and an operational amplifier, and the smoke detection head is connected with the input end of the voltage comparator, and the output end of the voltage comparator It is connected with the input terminal of the operational amplifier, and the output terminal of the operational amplifier is connected with the central controller.

Fig. 4 is an electrical schematic diagram of the wireless communication module of the present invention. As shown in Figure 4, the wireless communication module of this substation fire prevention and anti-theft system includes an RS485 interface, a microprocessor and a radio frequency module, the radio frequency is connected to the microprocessor, and the microprocessor is connected to the central control through the RS485 interface. device connection.

Fig. 5 is an electrical schematic diagram of the radio frequency receiving module of the present invention. As shown in Figure 5, the module is designed with PT2262/2272 wireless remote control integrated circuit, and the wireless radio frequency sending module PT2262 is attached to the valuables, and the wireless radio frequency receiving module PT2272 is connected with the PB4 pin of the single chip microcomputer, so that the transmitting part can always transmit signals, PT2272 Received signal shows high level all the time. If the valuables move out of a certain range or are lost, the receiving part becomes a low level and is detected by the single-chip microcomputer to send out an audible and visual alarm.

The present invention takes Freescale MC9S12XS128 as the control core, realizes the detection of smoke and human body through the smoke sensor module and the pyroelectric human body infrared module, thereby sending out sound and light alarms for fire prevention and anti-theft, and adopts a memory with a large storage capacity to store fire prevention and anti-theft, The detailed information of the entry and exit of valuables and the number of people is easy to call out and check; the use of PT2262/2272 wireless integrated circuits to realize the detection of valuables is accurate, and the self-made RS-485 wireless module is used to realize network communication; the entrance and exit of substations are detected through the door switch detection module For the number of people, the temperature is collected in real time through the 18b20 temperature detection module. The invention not only has the alarm function of fire protection and anti-theft, but also can detect the information of the number of people entering and leaving the station in real time, and transmit the real-time data to the upper computer of the dispatching center through long-distance communication, and save the alarm information in the database for easy query.

Claims (7)

1. fire-proof and theft-proof system of transformer station; It is characterized in that; Comprise central controller, less radio-frequency transmitter module, less radio-frequency receiver module, human-body infrared sensing device, door switch detection module, temperature sensor, smoke transducer, alarm module, storer, display screen, wireless communication module and host computer; Said less radio-frequency receiver module, human-body infrared sensing device, door switch detection module, temperature sensor, smoke transducer, alarm module, storer, display screen and wireless communication module are connected with central controller respectively; Said less radio-frequency transmitter module is arranged on the valuables of transformer station, and said wireless communication module is connected with host computer through wireless network.

2. fire-proof and theft-proof system of a kind of transformer station according to claim 1 is characterized in that, also comprises solar panel, and said solar panel is that system provides working power.

3. fire-proof and theft-proof system of a kind of transformer station according to claim 1 is characterized in that, said central controller adopts Freescale MC9S12XS128 single-chip microcomputer.

4. fire-proof and theft-proof system of a kind of transformer station according to claim 1 is characterized in that, said human-body infrared sensing device comprises human body infrared probe and processor and processor peripheral circuits.

5. fire-proof and theft-proof system of a kind of transformer station according to claim 1; It is characterized in that; Said smoke transducer comprises smoke detection head, voltage comparator and operational amplifier; Said smoke detection head is connected with the input end of voltage comparator, and the output terminal of said voltage comparator is connected with the input end of operational amplifier, and the output terminal of said operational amplifier is connected with central controller.

6. fire-proof and theft-proof system of a kind of transformer station according to claim 1; It is characterized in that; Said wireless communication module comprises RS485 interface, microprocessor and wireless radio frequency modules, and said less radio-frequency is connected with microprocessor, and said microprocessor is connected with central controller through the RS485 interface.

7. fire-proof and theft-proof system of a kind of transformer station according to claim 1 is characterized in that, said alarm module comprises sound and light alarm module, dialing alarm module and audio alert module.

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