CN201340646Y - Remote gas monitoring alarm device - Google Patents

Abstract

The utility model discloses remote gas monitoring alarm device, including gas sensor, wireless transceiver terminal, transfer node, power line, the connection between them is that gas sensor is connected with wireless transceiver terminal A electricity, and information source information sink C, wireless transceiver terminal A, transfer node 1, power line 1, transfer node 2, transfer node 3, power line 2, transfer node 4, wireless transceiver terminal B, information source information sink D electricity in proper order are connected. The utility model has the advantages that: the conditions of safe production in the operation area, such as gas concentration, humidity, temperature, air pressure, dust degree, production progress and the like of a coal mine can be reflected to all levels of safety production supervision departments beyond thousands of miles by the method, and the supervision departments can timely and quickly feed back information to the operation area, so that the method is greatly favorable for safe production.

Description

Remote gas monitoring and alarm device

technical field

The utility model relates to a gas monitoring and alarming device.

Background technique

The operation area containing gas is a high-risk operation area. For safe production, a monitoring and alarm device is installed in the operation area containing gas. At present, the gas monitoring and alarming devices are different, and the monitoring and alarming methods are also different. The most commonly used ones are: install gas sensors in gas-containing work areas, and then alarm when the gas concentration reaches a dangerous value, or transmit the gas concentration information to the safety production supervision department in a different place, and this transmission is generally not long-distance. For example, from the coal mine to the ground safety production supervision office near the mine, if the wireless channel is used for transmission, from the underground mine to the ground, a high-power transmitter is required. , when there are components that isolate the signal on the power line, such as ammeters, switches, etc., it cannot be transmitted.

Contents of the invention

The technical problem to be solved by the utility model is to provide a long-distance gas monitoring and alarming device in order to overcome the above-mentioned shortcomings, and the device can be used to realize long-distance gas monitoring and alarming, such as mining bureaus or provincial and municipal safety production monitoring management departments It can monitor the safe production of coal mine underground working areas hundreds of kilometers away.

The utility model adopts the following technical solutions.

The long-distance gas monitoring and alarming device includes a gas sensor, and also includes a wireless transceiver terminal, a transmission node, and a power line. The transmission node 1, the power line 1, the transmission node 2, the transmission node 3, the power line 2, the transmission node 4, the wireless transceiver terminal B, and the information source and sink D are electrically connected in sequence.

The transmission node includes an antenna A, a wireless transceiver module, a main controller, a double broadband high output current amplifier, a wire standard interface coupler, and a power line, which are electrically connected in sequence and can transmit data signals bidirectionally. The bidirectional transmission, It means that the signal is transmitted from the antenna to the power line, and can also be transmitted from the power line to the antenna.

The wireless transceiver module includes an antenna, a power amplifier, a radio frequency transceiver, a microprocessor and a crystal oscillator. The power amplifier, the radio frequency transceiver, and the microprocessor are electrically connected in sequence, and can transmit data signals bidirectionally. , means that the signal is transmitted from the power amplifier to the microprocessor, or from the microprocessor to the power amplifier. The other end of the microprocessor is electrically connected to the main controller, and the antenna is electrically connected to the power amplifier to receive the signal and then transmit. It is electrically connected with the power amplifier to send the signal, the crystal oscillator A is electrically connected with the radio frequency amplifier, and the crystal oscillator B is electrically connected with the microprocessor.

The utility model has the advantage that: the combination of wireless transmission and power line carrier transmission can realize long-distance gas monitoring and alarming, for example, the safe production conditions of a coal mine, such as gas concentration, humidity, temperature, dust degree, air pressure, Production progress, etc., can be reported to the safety production supervision departments at various levels hundreds of kilometers away by using this device, such as the Mining Bureau, provincial and municipal safety production supervision departments, and the safety production supervision departments at all levels can be timely and quickly Feedback information to the mine operation area, which is greatly conducive to safe production.

Description of drawings

Fig. 1 is a structural block diagram of the utility model;

Fig. 2 is a structural block diagram of a transmission node;

Figure 3 is a block diagram of the structure of the wireless transceiver module.

Detailed ways

The utility model is further described in conjunction with the embodiments and the accompanying drawings.

Referring to Figure 1, the long-distance gas monitoring and alarm device includes a gas sensor, and also includes a wireless transceiver terminal, a transmission node, and a power line. The transceiver terminal A, the transmission node 1, the power line 1, the transmission node 2, the transmission node 3, the power line 2, the transmission node 4, the wireless transceiver terminal B, and the information source and sink D are electrically connected in sequence. The electrical connection includes a wired channel and a wireless channel, the electrical connection between the transmission node 1 and the transmission node 2, the electrical connection between the transmission node 3 and the transmission node 4 is a wired channel, and the electrical connection between the transmission node 2 and the transmission node 3 , The electrical connection between wireless transceiver terminal A and transmission node 1, transmission node 4 and wireless transceiver terminal B is a wireless channel, the electrical connection between source and sink C and wireless transceiver terminal A, and the electrical connection between source and sink C and wireless transceiver terminal B The electrical connection is a wireless channel.

Referring to Fig. 2, the transmission node includes an antenna, a wireless transceiver module, a main controller, a double broadband high output current amplifier, a wire standard interface coupler, and a power line, which are electrically connected in turn and can transmit data signals bidirectionally. Two-way transmission means that the signal is transmitted from the antenna to the power line, or from the power line to the antenna.

Referring to Fig. 3, the wireless transceiver module includes an antenna, a power amplifier, a radio frequency transceiver, a microprocessor and a crystal oscillator, and the power amplifier, the radio frequency transceiver, and the microprocessor are electrically connected in sequence, and can transmit data signals bidirectionally, The two-way transmission means that the signal is transmitted from the power amplifier to the microprocessor, or from the microprocessor to the power amplifier. The other end of the microprocessor is electrically connected to the main controller, and the antenna is electrically connected to the power amplifier to receive the signal. For transmission, the antenna is also electrically connected to the radio frequency transceiver to send signals, the crystal oscillator A is electrically connected to the radio frequency transceiver, and the crystal oscillator B is electrically connected to the microprocessor. The power supply supplies power to each component. The antennas in Figure 2 and Figure 3 are the same component.

The power line 1 and the power line 2, the power line 1 is the power line near the source, such as the power line near the mine operation area, and the power line 2 is the power line near the safety production supervision department, which can be the following three situations: 1. The same power line, due to The power line is equipped with components that isolate signals, such as ammeters, switches, etc. The power line at the front of the component is called power line 1, and the power line at the back is called power line 2. ② On the same group of transmission power lines, the power line 1 is the X phase, and the power line 2 is the Y phase or Z phase. ③. On different groups of transmission power lines, the power line of a certain phase in the first group is power line 1, and the power line of a certain phase in the other group is power line 2.

The transmission node 1, transmission node 2, transmission node 3, and transmission node 4 described in this document have the same structure, and the functions of each component are as follows:

A: Wireless transceiver module: used to receive audio, video and control signals transmitted by wireless terminals, and at the same time transmit the received signals to the main controller; or receive audio, video and control signals demodulated from the main controller, through Wireless transmission to wireless transceiver terminals or transmission nodes.

B: Main controller: After the signal transmitted by the wireless transceiver module is added with the power address code, after modulation, it is transmitted to the double broadband high output current amplifier; or the signal coupled from the wire standard interface coupler is received, demodulated, Remove the power address code and pass it to the wireless transceiver module.

C: Double broadband high output current amplifier: convert the signal from the main controller into a high current signal, and then transmit it to the wire standard interface coupler to couple to the power line.

D: Wire standard interface coupler: couple the high-current audio, video and control signals from the dual broadband high output current amplifier to the power line; or separate the audio, video and control signals from the power line and send them to the main controller.

E: The power manager is the power source obtained from the power line. Through voltage regulation and voltage division, it supplies power to the wireless transceiver module, main controller, dual broadband high output current amplifier, and wire standard interface coupler.

The functions of each component of the wireless transceiver module are as follows:

1. Power amplifier: It is used to amplify the signal modulated by the radio frequency transceiver, modulate it on the antenna and send it wirelessly after power amplification.

2. Radio frequency transceiver: send the data transmitted by the microprocessor to the power amplifier after carrier modulation; or transmit the signal transmitted by the antenna to the microprocessor after demodulating the data.

3. Microprocessor: exchange data with the radio frequency transceiver; exchange data with the main controller in the transmission node.

4. Crystal oscillator B: Connect with the microprocessor to ensure the normal operation of the microprocessor.

5. Crystal oscillator A: Connect with the radio frequency transceiver to ensure the normal operation of the radio frequency transceiver.

Referring to Fig. 1 to Fig. 3, the working process of the utility model is briefly described, including the following steps: ①Install the source and sink C in the work area where the gas concentration needs to be monitored, such as gas sensors, cameras, walkie-talkies, visual screens, computers, and televisions ;

② The source and sink C transmit the electrical signal to the wireless terminal transceiver A, such as transmitting the gas concentration signal detected by the gas sensor to the wireless transceiver terminal A;

③The wireless transceiver terminal A modulates the signal transmitted from the source and sink C into a data signal and transmits it to the transmission node 1;

④The transmission node 1 couples the data signal to the power line 1, and transmits it to the transmission node 2 through the power line;

⑤ Transmitting node 2 transmits the data signal to transmitting node 3 through wireless;

⑥ The transmission node 3 couples the data signal to the power line 2, and uses the power line to transmit the data signal to the transmission node 4;

⑦ The transmission node 4 mediates and transmits the data signal to the wireless transceiver terminal B;

⑧The wireless transceiver terminal B transmits the signal to the source and destination D, such as camera, walkie-talkie, visual screen, computer, TV;

⑨The information source and sink D sends out instructions to become the information source, which is reversely transmitted to the information source and sink C, and the information source and sink C becomes the information destination, and the personnel in the operation area process according to the instructions;

⑩ Through steps ①～⑨, the two-way transmission of the signal is completed, and the monitoring is carried out. The two-way transmission means that the signal sent by the source and sink C is transmitted to the source and sink D through the intermediate transmission device, or the signal sent by the source and sink D passes through The intermediate transmission device transmits to the information source and sink C, or the mutual signal feedback between them.

Between transmission node 2 and transmission node 3, according to the transmission distance, multiple transmission nodes and power lines can be arranged to transmit data signals, such as transmission node 2→power line 3→transmission node 5→transmission node 6→power line 4→transmission Node 7 → transfer node 8 → power line 5 → transfer node 9 → transfer node 3 .

Claims (3)

1, a kind of long distance gas monitoring and alarming device, comprise firedamp sensor, it is characterized in that: also include wireless receiving and dispatching terminal, transmission node, line of electric force, annexation between them is that firedamp sensor is electrically connected with wireless receiving and dispatching terminal A, and sourcesink C, wireless receiving and dispatching terminal A, transmission node 1, line of electric force 1, transmission node 2, transmission node 3, line of electric force 2, transmission node 4, wireless receiving and dispatching terminal B, sourcesink D are electrically connected successively.

2, long distance gas monitoring and alarming device according to claim 1, it is characterized in that: described transmission node comprises antenna, wireless transceiver module, master controller, two broadbands High Output Current amplifier, electric wire standard interface coupling mechanism, line of electric force, they are electrically connected successively, but and two-way transfer of data signal, described two-way transmission, be meant that signal is sent to line of electric force from antenna, also can be sent to antenna from line of electric force.

3, long distance gas monitoring and alarming device according to claim 2, it is characterized in that: described wireless transceiver module comprises antenna, power amplifier, radio-frequency (RF) transceiver, microprocessor and crystal oscillator, power amplifier, radio-frequency (RF) transceiver, microprocessor is electrically connected successively, but and two-way transfer of data signal, described two-way transmission, be meant that signal is sent to microprocessor from power amplifier, also can be sent to power amplifier from microprocessor, the other end of microprocessor is electrically connected with master controller, antenna is electrically connected received signal with power amplifier and launches, antenna also is electrically connected with power amplifier and sends signal to, crystal oscillator A is electrically connected with radio frequency amplifier, and crystal oscillator B is electrically connected with microprocessor.

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