CN216310968U - Infrared correlation alarm system for power station - Google Patents
Infrared correlation alarm system for power station Download PDFInfo
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- CN216310968U CN216310968U CN202123011277.9U CN202123011277U CN216310968U CN 216310968 U CN216310968 U CN 216310968U CN 202123011277 U CN202123011277 U CN 202123011277U CN 216310968 U CN216310968 U CN 216310968U
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Abstract
The utility model relates to the field of infrared correlation, in particular to an infrared correlation alarm system for a power station, which comprises a first detection unit, a second detection unit and a third detection unit, wherein the first detection unit comprises a first emitter and a first receiver, the first emitter and the first receiver are arranged at the top of an outer wall, the first receiver receives a detection light beam emitted by a second emitter so as to detect whether an object passes through the top of the outer wall, and if the object passes through the top of the outer wall, the first detection unit sends a first control signal; the second detection unit comprises a second transmitter and a second receiver, the second transmitter and the second receiver are installed on the inner wall of the outer wall and are arranged close to the ground, and the second receiver receives detection beams sent by the second transmitter to detect whether objects pass through the ground or not. The method and the device have the effect of reducing the false alarm rate of the infrared correlation alarm system.
Description
Technical Field
The application relates to the field of infrared correlation, in particular to an infrared correlation alarm system for a power station.
Background
The infrared correlation full name 'active infrared intrusion detector' has a basic structure including a transmitting end, a receiving end, an optical lens, an alarm and the like. The detection principle is that infrared rays are emitted by an emitting end, then are focused by an optical lens, so that the infrared rays are transmitted to a long distance, and finally the infrared rays are received by a receiving end.
When an object blocks the infrared ray emitted by the emitting end, the alarm can send out an alarm signal because the receiving end cannot receive the infrared ray. In the related art, the infrared correlation system is generally used on an outer wall of a transformer substation and used for detecting whether an irrelevant person turns over the outer wall to enter the transformer substation.
In view of the above-mentioned related technologies, the inventor believes that there is a defect that the receiving end cannot receive the infrared ray due to the interference such as trees and birds, and thus a false alarm is caused.
SUMMERY OF THE UTILITY MODEL
In order to reduce the false alarm rate of the infrared correlation alarm system, the application provides an infrared correlation alarm system for a power station.
The application provides a power station is with infrared correlation alarm system adopts following technical scheme:
an infrared correlation alarm system for a power station comprises,
the first detection unit comprises a first emitter and a first receiver, the first emitter and the first receiver are mounted at the top of the outer wall, the first receiver receives detection sent by the second emitter to detect whether an object passes through the top of the outer wall, and if the object passes through the top of the outer wall, a first control signal is sent;
the second detection unit comprises a second emitter and a second receiver, the second emitter and the second receiver are mounted on the inner wall of the outer wall and are arranged close to the ground, the second receiver receives a detection signal sent by the second emitter to detect whether an object passes through the ground or not, and if the object passes through the ground, a second control signal is sent;
the switching circuit is communicated with the first receiver and the second receiver and is used for receiving the first control signal and the second control signal and outputting an alarm signal;
and the alarm receives the alarm signal output by the switching circuit and performs alarm operation.
By adopting the technical scheme, when an irrelevant person turns over the wall, the first detection unit detects that an object passes through and sends a first control signal when the top of the outer wall, when the irrelevant person turns over from the outer wall and falls on the ground, the second detection unit detects that the object passes through and sends a second control signal to the switch circuit, the switch circuit controls the alarm to send an alarm signal to drive, when interference such as flying birds passes through, the first detection unit detects that the object passes through and the second detection unit does not detect, so that the alarm does not give an alarm, and false alarm caused by the interference such as flying birds is reduced.
Preferably, the switch circuit comprises a relay KT1 and a relay KT2, the relay KT1 is provided with a control end KT-1, the relay KT2 is provided with a control end KT-2, and the control end KT-2 are both connected in series in a power supply circuit of the alarm;
the relay KT1 is connected with the first receiver to receive a first control signal and control the opening and closing of the control end KT-1, and the relay KT2 is connected with the second receiver to receive a second control signal and control the opening and closing of the control end KT-2.
Through adopting above-mentioned technical scheme, relay KT1 receives the first control signal that first receiver sent, the opening and shutting of control end KT-1, and relay K2 receives the second control signal that the second receiver sent, the opening and shutting of control end KT-2, and control end KT-2 all establishes ties in the supply circuit of alarm with control end KT-2, and only when control end KT-2 and control end KT-2 all closed, the controller just can start to reach the purpose that the control alarm started.
Preferably, the relay KT1 is configured as a normally open type delay off time relay.
By adopting the technical scheme, because the action of wall turning and floor falling has time interval, the relay KT1 is delayed to be switched off after being closed so as to wait for the floor falling action to trigger the relay KT 2.
Preferably, the relay KT2 is set as a normally open type delay off time relay, and the delay time of the relay KT1 is longer than that of the relay KT 2.
By adopting the technical scheme, the relay KT1 is delayed to be disconnected after being closed so as to wait for the floor action to trigger the relay KT2, and the relay KT2 is also delayed to be disconnected after being closed, so that the alarm signal of the alarm continuously occurs.
Preferably, the switching circuit further comprises
A triode Q1, wherein the base of the triode Q1 is electrically connected with the signal output end of the first receiver, the emitter of the triode Q1 is grounded, and the collector of the triode Q1 is connected in series in a power supply loop of the relay KT 1; (ii) a
And a base of the triode Q2 is electrically connected with a signal output end of the second receiver, an emitter of the triode Q2 is grounded, and a collector of the triode Q2 is connected in series in a power supply loop of the relay KT 2.
By adopting the technical scheme, the triode Q1 is used for amplifying the first control signal sent by the first receiver, and the triode Q2 is used for amplifying the second control signal sent by the second receiver.
Preferably, the alarm is provided as a speaker capable of emitting an audible signal.
By adopting the technical scheme, the purpose of driving away irrelevant personnel is achieved.
Preferably, the alarm further comprises a control switch SB for controlling the on-off of the alarm power supply loop.
Through adopting above-mentioned technical scheme, control switch SB is used for when the user overhauls, carries out the outage operation to the alarm.
Preferably, the first emitter and the second emitter are both set as infrared emitters, and the first receiver and the second receiver are both set as infrared receivers.
Through adopting above-mentioned technical scheme, first receiver can receive the infrared signal that first sender sent, and the second receiver is used for receiving the infrared signal that the second sender sent to reach the purpose that detects wrong object and pass through.
Drawings
Fig. 1 is a schematic structural diagram of an infrared correlation alarm system for a power station according to an embodiment of the present application.
Fig. 2 is a circuit diagram of an infrared correlation alarm system for a power station according to an embodiment of the present application.
Reference numerals: 1. a detection device; 10. a first detection unit; 100. a first transmitter; 101. a first receiver; 11. a second detection unit; 110. a second transmitter; 111. a second receiver; 2. a switching circuit; 3. an alarm; 4. an outer wall; 40. a first wall body; 400. a first mounting bar; 401. a second mounting bar; 41. a second wall body; 42. and a third wall body.
Detailed Description
The present application is described in further detail below with reference to figures 1-2.
The embodiment of the application discloses infrared correlation alarm system for power station. Referring to fig. 1 and 2, the infrared correlation alarm system for the power station comprises a detection device 1, a switch circuit 2 and an alarm 3, wherein the detection device 1 is installed on an outer wall 4 of the substation and used for detecting whether irrelevant personnel enter or not, the switch circuit 2 is used for controlling the alarm 3 to be turned on and turned off, if the irrelevant personnel enter, the detection device 1 sends a control signal to the switch circuit 2, and the switch circuit 2 controls the alarm 3 to be turned on for alarm work.
The detection device 1 comprises a first detection unit 10 and a second detection unit 11, the first detection unit 10 comprises a first emitter 100 and a first receiver 101, the second detection unit 11 comprises a second emitter 110 and a second receiver 111, the first emitter 100 and the second emitter 110 are both arranged as infrared emitters, the first receiver 101 and the second receiver 111 are both arranged as infrared receivers, the first receiver 101 can receive infrared signals emitted by the first emitter 100, and the second receiver 111 can receive infrared signals emitted by the second emitter 110.
Referring to fig. 1, the exterior wall 4 includes a first wall 40, a second wall 41, and a third wall 42, the first wall 40 and the second wall 41 are disposed in parallel, the first wall 40, the second wall 41 and the third wall 42 are disposed perpendicularly, the first transmitter 100 and the second transmitter 110 are mounted on the first wall 40, and the first receiver 101 and the second receiver 111 are mounted on the second wall 41.
A first installation rod 400 is vertically fixed on the side wall of the inner side of the first wall 40, the top of the first installation rod 400 extends upwards out of the first wall 40, the first emitter 100 is installed at the top of the first installation rod 400, a second installation rod 401 is vertically fixed on the side wall of the inner side of the second wall 41, the top of the second installation rod 401 extends upwards out of the second wall 41, the first receiver 101 is installed at the top of the second installation rod 401, the first emitter 100 and the first receiver 101 are arranged oppositely, the first receiver 101 can receive infrared signals sent by the first emitter 100, and the first installation rod 400 and the second installation rod 401 are abutted to the inner wall of the third wall 42.
The second transmitter 110 is fixed on the inner wall of the first wall 40 and close to the ground, the second receiver 111 is fixed on the inner wall of the second wall 41 and close to the ground, the second transmitter 110 and the second receiver 111 are arranged oppositely, and the second receiver 111 can receive the infrared signal emitted by the second transmitter 110.
When an irrelevant person turns into the power station from the third wall 42, the irrelevant person can shield the infrared signal sent by the first emitter 100 at the top of the third wall 42, at the moment, the first receiver 101 cannot receive the infrared signal sent by the first emitter 100 and sends a first control signal to the switch circuit 2, when the irrelevant person turns into the ground, the infrared signal sent by the second emitter 110 is shielded, at the moment, the second receiver 111 cannot receive the infrared signal sent by the second emitter 110 and sends a second control signal to the switch circuit 2, and the switch circuit 2 drives the alarm 3 to alarm after receiving the first control signal and the second control signal.
Referring to fig. 2, the switching circuit 2 includes a transistor Q1, a transistor Q2, a relay KT1 and a relay KT2, the transistor Q1 and the transistor Q2 are both set to NPN type, the relay KT1 and the relay KT2 are both set to normally open type delay off-time relays, and the delay time of the relay KT1 is greater than that of the relay KT 2.
Relay KT1 is provided with control end KT-1, relay KT2 is provided with control end KT-2, the signal output part of the first receiver 101 that triode Q1's base is connected, triode Q1's projecting pole ground connection, triode Q1's collecting electrode is connected with the one end of relay KT1 coil, the other end of relay KT1 coil is connected with power VCC1, the power supply of alarm 3 sets up to VCC2, relay KT 1's control end KT-1 establishes ties in the power supply circuit of alarm 3.
The base of relay KT2 and the signal output part electric connection of second receiver 111, relay KT 2's projecting pole ground connection, relay KT 2's collecting electrode is connected with the one end of relay KT2 coil, the other end connecting power VCC1 of relay KT2 coil, control end KT-2 establishes ties in the power supply circuit of alarm 3, still be provided with control switch SB in the power supply circuit of alarm 3, control switch SB sets up to the case switch, control end KT-2, control switch SB and control end KT-1 all establish ties the setting.
The alarm 3 may be a speaker to emit an audible signal to repel an intruder and unrelated person.
The implementation principle of the infrared correlation alarm system for the power station in the embodiment of the application is as follows: the control switch SB is closed, when an irrelevant person turns in from the third wall 42, the irrelevant person firstly shields the infrared signal sent by the first emitter 100, the first receiver 101 does not receive the infrared signal at the moment, a high level is output to the base electrode of the triode Q1, the collector electrode and the emitter electrode of the triode Q1 are conducted, the relay KT1 is connected into the power supply VCC1 at the moment, and the control end KT-1 is closed; when irrelevant personnel fall to the ground, shelter from the infrared signal that second transmitter 110 sent, infrared signal is not received to this moment second receiver 111, output high level to triode Q2's base, triode Q2's projecting pole and collecting electrode switch on, relay KT2 inserts in power VCC1 this moment, control end KT-2 is closed, alarm 3 inserts power VCC2, alarm 3 carries out alarm work, shelter from the infrared signal that first transmitter 100 sent or the staff shelters from the infrared signal that second transmitter 110 sent in the power station as the flying bird, alarm 3 does not carry out alarm work this moment, in order to reduce the wrong report condition and take place.
The above embodiments are preferred embodiments of the present application, and the protection scope of the present application is not limited by the above embodiments, so: all equivalent changes made according to the structure, shape and principle of the present application shall be covered by the protection scope of the present application.
Claims (8)
1. The utility model provides an infrared correlation alarm system for power station which characterized in that: comprises that
The first detection unit (10) comprises a first emitter (100) and a first receiver (101), the first emitter (100) and the first receiver (101) are installed at the top of the outer wall (4), the first receiver (101) receives a detection light beam emitted by the second emitter (110) to detect whether an object passes through the top of the outer wall (4), and if the object passes through the top of the outer wall (4), a first control signal is emitted;
the second detection unit (11), the second detection unit (11) includes a second transmitter (110) and a second receiver (111), the second transmitter (110) and the second receiver (111) are installed on the inner wall of the outer wall (4) and are arranged close to the ground, the second receiver (111) receives a detection light beam emitted by the second transmitter (110) to detect whether an object passes through the ground, and if the object passes through the ground, a second control signal is emitted;
the switching circuit (2) is communicated with the first receiver (101) and the second receiver (111) and is used for receiving the first control signal and the second control signal and outputting an alarm signal;
and the alarm (3) receives the alarm signal output by the switch circuit (2) and performs alarm operation.
2. The infrared correlation alarm system for the power station as set forth in claim 1, wherein: the switching circuit (2) comprises a relay KT1 and a relay KT2, the relay KT1 is provided with a control end KT-1, the relay KT2 is provided with a control end KT-2, and the control end KT-2 are both connected in series in a power supply circuit of the alarm (3);
the relay KT1 is electrically connected with the first receiver (101) to receive a first control signal and control the opening and closing of the control end KT-1, and the relay KT2 is electrically connected with the second receiver (111) to receive a second control signal and control the opening and closing of the control end KT-2.
3. The infrared correlation alarm system for the power station as claimed in claim 2, wherein: the relay KT1 is provided as a normally open time delay off-time relay.
4. The infrared correlation alarm system for the power station as set forth in claim 3, wherein: the relay KT2 is set as a normally open type delay off time relay, and the delay time of the relay KT1 is larger than that of the relay KT 2.
5. The infrared correlation alarm system for the power station as set forth in claim 4, wherein: the switching circuit (2) further comprises
A triode Q1, wherein the base of the triode Q1 is electrically connected with the signal output end of the first receiver (101), the emitter of the triode Q1 is grounded, and the collector of the triode Q1 is connected in series in a power supply loop of the relay KT 1; (ii) a
And a base electrode of the triode Q2 is electrically connected with a signal output end of the second receiver (111), an emitter electrode of the triode Q2 is grounded, and a collector electrode of the triode Q2 is connected in series in a power supply loop of the relay KT 2.
6. The infrared correlation alarm system for the power station as set forth in claim 1, wherein: the alarm (3) is arranged to be a loudspeaker capable of emitting sound signals.
7. The infrared correlation alarm system for the power station as set forth in claim 1, wherein: the alarm device also comprises a control switch SB for controlling the on-off of a power supply loop of the alarm device (3).
8. The infrared correlation alarm system for the power station as set forth in claim 1, wherein: the first transmitter (100) and the second transmitter (110) are both arranged to be infrared transmitters, and the first receiver (101) and the second receiver (111) are both arranged to be infrared receivers.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202123011277.9U CN216310968U (en) | 2021-12-02 | 2021-12-02 | Infrared correlation alarm system for power station |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202123011277.9U CN216310968U (en) | 2021-12-02 | 2021-12-02 | Infrared correlation alarm system for power station |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN216310968U true CN216310968U (en) | 2022-04-15 |
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202123011277.9U Active CN216310968U (en) | 2021-12-02 | 2021-12-02 | Infrared correlation alarm system for power station |
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| Country | Link |
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| CN (1) | CN216310968U (en) |
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2021
- 2021-12-02 CN CN202123011277.9U patent/CN216310968U/en active Active
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