CN2700568Y - Intelligent human body inductive alarm device for mining - Google Patents
Intelligent human body inductive alarm device for mining Download PDFInfo
- Publication number
- CN2700568Y CN2700568Y CN 200420039814 CN200420039814U CN2700568Y CN 2700568 Y CN2700568 Y CN 2700568Y CN 200420039814 CN200420039814 CN 200420039814 CN 200420039814 U CN200420039814 U CN 200420039814U CN 2700568 Y CN2700568 Y CN 2700568Y
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- pyroelectric infrared
- human body
- output
- circuit
- infrared sensor
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Abstract
The utility model discloses an intelligent human body inductive alarm device for mining, comprising a power source case, a detection unit, pyroelectric infrared sensors, etc. The power source case is an explosion isolating and intrinsically safe device. A mainframe case and the pyroelectric infrared sensor are both intrinsically safe devices. The detection unit inside the mainframe case is the core part of the device, comprising a computer, a signal amplifier, an alarm/output circuit, etc. A plurality of the pyroelectric infrared sensors can be adopted and externally connected, and a data acquisition circuit is added. The computer adopts a Flash single-chip computer or a DSP digital signal processor. The utility model which is suitable for using under coal mine and in the environment of explosive gas realizes audible and visual alarm when people approach or enter a dangerous area and shut down and lockout of relative devices, guarantees people's safety free from device injury. The device with multiple functions and high reliability is an intelligent product comprising computers.
Description
Affiliated technical field
The utility model relates under the coal mine and the safety protection field of staff under the explosive gas atmosphere is arranged, particularly a kind of utilize the pyroelectric infrared sensor detection of dynamic, to the staff near or enter the mining intelligent type human body sensing warning device that the deathtrap is carried out intelligent decision, implemented caution and control usefulness.
Background technology
Pyroelectric infrared sensor is a kind of passive type modulation temperature pick up, and it comes the detection of a target by the temperature difference of target and background, and the specific wavelength infrared signal that the energy human body is sent is so claim human motion sensor again.Produce at present the unit is arranged, the pyroelectric infrared sensor of cellular lens that double base, quaternary, 180 ° and sensitivity are higher.Be widely used in intrusion alarm unit, Automatic water valve, dangerous warning region alarm etc." radio " 1998 12 phases, 31 pages of " the integrated infrared sensor of microminiature pyroelectricity " literary compositions proposed the application with this sensor and interface microcontroller.In addition, in " application of pyroelectric infrared detector " literary composition, provide and utilize two pyroelectric infrared detectors to differentiate the circuit of measured objects by direction.
Under coal mine and have under the explosive gas atmosphere, the safety alarm device when needing to use the staff equally and entering the deathtrap.Especially, Modern coal mines along with winning equipment to the big machinery development, the working environment that has potential safety hazard increases, personnel carelessness is strayed into the deathtrap to be become and causes one of major reason that personal injury takes place.Show through information retrieval, still useless in the world in the down-hole, mine and there are personnel under the explosive gas atmosphere to be strayed into the safeguard protection caution and the control system of deathtrap.
Summary of the invention
In order to solve under the coal mine and to have staff under the explosive gas atmosphere to be strayed into the security warning problem of deathtrap, the utility model provides a kind of mining intelligent type human body sensing warning device, it is an electric apparatus for explosive atmospheres, be applicable under the coal mine and the environment of damp is arranged, can the staff near or send sound and light alarm and close down relevant device when being strayed into the deathtrap, guarantee personal safety, not injured by equipment.
The utility model is to solve the problems of the technologies described above the technical scheme that is adopted to be:
Mining intelligent type human body sensing warning device is made up of power supply box, detecting unit, pyroelectric infrared sensor etc.Power supply box is a Flameproof and intrinsically safe equipment, and mainframe box and pyroelectric infrared sensor are intrinsic safety type equipment.The detecting unit of installing in the mainframe box and the circuit of pyroelectric infrared sensor are pressed the intrinsic safety type circuit design.Detecting unit is the core of system, is made up of computer, signal amplifier and warning/output circuit etc.
The utility model is to solve the problems of the technologies described above the technical scheme that is adopted can also be:
The pyroelectric infrared sensor of mining intelligent type human body sensing warning device adopts two or more, serves as preferred with four, is connected to outside the mainframe box; And, increase data acquisition circuit at detecting unit, to adapt to the needs of handling a plurality of sensor output signals; The computer that adopts is Flash type single-chip microcomputer or DSP digital signal processor.
The beneficial effects of the utility model are:
1. this warning device is an electric apparatus for explosive atmospheres, is adapted under the coal mine and has in the explosive gas atmosphere using.Can realization sound and light alarm, the personnel of personnel before near the deathtrap enter closing down and locking of warning behind the deathtrap and relevant device, effectively support personnel's safety, not injured by equipment.
2. this warning device is the intelligent product that is made of computer, has multi-functional, high reliability.
Description of drawings
Fig. 1 is mainframe box profile of the present utility model and structural representation axonometric drawing
Fig. 2 is the structural representation of pyroelectric infrared sensor of the present utility model
Fig. 3 is the formation schematic diagram of detecting unit in the mainframe box
Fig. 4 is the circuit theory diagrams of pyroelectric infrared sensor
Fig. 5 is the analog channel circuit theory diagrams of detecting unit
Fig. 6 is the schematic circuit of the computer part of detecting unit
Fig. 7 is the warning/output circuit schematic diagram of detecting unit
Among the figure: 1-sensor wrap, 2-detecting unit, 3-cloche, 4-pyroelectric infrared sensor element, 5-holding wire, 6-printed board, 7-motherboard, 8-warning output and power panel, 9-warning power supply box interface, 10-intrinsic safety electric source interface, 11-control output interface, 12-sensor interface, 13-alarm lamp, 14-fixing threaded hole, 15-reset button, 16-power switch
The specific embodiment
The utility model is described in further detail below in conjunction with drawings and Examples.
Mainframe box profile of the present utility model shown in Figure 1 and structure.The front panel of mainframe box has four sensor interfaces (12), warning power supply box interface (9), intrinsic safety electric source interface (10), control output interface (11) from left to right successively, the mainframe box end face has alarm lamp (13), reset button (15), power switch (16), the mainframe box base plate has the plate edge, plate along on fixing threaded hole (14) is arranged.
The formation of detecting unit (2) in the mainframe box shown in Figure 3.Detecting unit (2) is made up of motherboard (7), warning/out-put supply plate (8), warning output interface (9), intrinsic safety electric source interface (10), control output interface (11), sensor interface (12), alarm lamp (13) etc.
The utility model mining intelligent type human body sensing warning device mainly is made up of power supply box, detecting unit, pyroelectric infrared sensor.Power supply box is a Flameproof and intrinsically safe equipment.Detecting unit is the core of system, and its circuit is made up of high speed processing single-chip microcomputer, signal amplifier, wave filter, data acquisition circuit, warning/output circuit etc., is installed in respectively on the interior motherboard (7) of mainframe box, the warning/out-put supply plate (8).Four pyroelectric infrared sensors are installed in outside the mainframe box, by cable, inserted in the mainframe box, be connected with detecting unit by four sensor interfaces (12) respectively, can handle the data of four sensor passages simultaneously.Power supply box is the interior detecting unit power supply of mainframe box by intrinsic safety electric source interface (10).Connect the outer acoustic alarm device of mainframe box by warning output interface (9), connect the outer relevant device of mainframe box by control output interface (11).The alarm lamp (13) that is positioned at the mainframe box top is used to send visual alarm.The mainframe box of installation and measuring unit and external pyroelectric infrared sensor thereof all are designed to intrinsic safety type equipment.
The structure of sensor shown in Figure 2, mainly by sensor wrap (1), cloche lens (3), rpyroelectric infrared sensing element (4), holding wire (5), printed board (6) constitutes.This sensor adopts cellular lens, i.e. Fresnel Lenses, the search coverage of corresponding four picture dots of each lens improves the sensitivity of surveying greatly, increases detection range, detection viewing field can reach 100 ° * more than 82 °.The variation of environment temperature and light are the principal elements that influences the sensor output sensitivity, select the narrow band pass filter that is exclusively used in the characteristics of human body of specific wavelength for use, can leach the influence of noise of visible light and other thermal source effectively.Sensor adopts analog signal output, through being input to single-chip microcomputer after the A/D conversion, handles the characteristic signal that human body is extracted in the back by digital filtering.
Sensor circuit shown in Figure 4 mainly is made up of pyroelectric infrared sensor element (SENSOR), preamplifier and active filter.
Pyroelectric infrared sensor element (SENSOR) is by rpyroelectric infrared crystal (CRYSTAL), load resistance (RES
2), FET (Q
0) constitute.Resistance (R
1), resistance (R
2) be its FET (Q
0) external drain electrode, source resistance.
Preamplifier is by integrated operational amplifier (A
1) OP07E and peripheral cell thereof: resistance (R
3, R
4), capacitor (C
1, C
2, C
3, C
5), imbalance regulator potentiometer (W
1) constitute.
Active filter is by integrated operational amplifier (A
2) OP07E and peripheral cell thereof: resistance (R
5, R
8), capacitor (C
6～C
8), feedback regulation potentiometer (W
2) constitute.OP07E is low imbalance integrated transporting discharging.
Capacitor (C
4), resistance (R
5) be the interstage coupling element.Capacitor (C
11, C
12) be power filtering capacitor.Sensor output analog voltage signal is by detectable signal transmission line socket (Sout
1) output.
Analog channel circuit shown in Figure 5, be data acquisition circuit, by analog channel selector switch (U
2), press follower (A
3), filter circuit, A/D converter (U
1) wait composition.
Single eight tunnels analogy switch (U
2) 4051 four road signal input part (X
0～X
3), with four road transducing signal end (Sout of detectable signal transmission line socket
1～Sout
4) the corresponding connection; Analog switch (U
2) output (X) meet voltage follower (A
3); Input (X
4) connecing reference voltage terminal, reference voltage is by accurate reference voltage circuit (D
1) LM385 and resistance (R
9) mu balanced circuit that constitutes provides; Variable connector address choice input (A, B, C) is by computer chip port socket P
1.0～P
1.2Termination single-chip microcomputer P
1Mouth P
10～P
12End.
Integrated transporting discharging (A
3) OP07E constitutes voltage follower, its output is via resistance (R
10), capacitor (C
8) filter circuit that constitutes, connect the input end of analog signal (AIN) of A/D converter.
A/D converter is 10 A/D converter (U
1) TLC549.Its data output end (DOUT) meets the P of computer chip port socket
1.4End, conversion timing clock pulse input terminal (I/O CLK) meets P
1.3End, two reference voltage input terminal (REF
+, REF
-) connect respectively+5V power supply and ground end, sheet choosing end (CS) meets the P of computer chip port socket
1.5End.The P of computer chip port socket
1.0～P
1.7End and single-chip microcomputer (U
3) P
1The P of mouth
10～P
17End is corresponding to be connected.
At the circuit of the single chip part shown in Fig. 6, form by single-chip microcomputer and peripheral circuit thereof: RAM, latch, trigger, decoder/multiplexer, microprocessor monitors circuit, nor gate etc.
Single-chip microcomputer (U
3) employing flash memory (Flash type) single-chip microcomputer 89C55WD.P is arranged
0～P
3Four bidirectional interfaces.
P
0Mouth (P
00～P
07) by address/data bus, direct and data storage (U
5) 6264 data wire (D
0～D
7), eight D flip-flop (U
6) data wire (D of 74HC273
1～D
8) be connected, simultaneously again with eight D-latch (U
4) data wire (D
0～D
7) connect latch (U
4) output (Q
0～Q
7) and data storage (U
5) low eight bit address line (A
0～A
7) connect; Single-chip microcomputer (U
3) permission address latch signal output (ALE/P) meet latch (U
4) gating end (LE).
P
2Mouth (P
20～P
27) be the high eight-bit address wire, five (P wherein
20～P
24) meet data storage (U
5) 6264 high address line (A
8～A
12), three (P
25～P
27) meet 3-8 line decoder (U
7) the address choice input (A, B, C) of 74HC138.
P
1Mouth (P
10～P
17) make universaling I/O port, by computer chip port socket P
1.0～P
1.7End connects the respective terminal of analog channel circuit and alarm lamp circuit respectively.
P
3Mouth is made multipurpose port, its output INT
1, INT
0P by block signal transmission line socket
3.2, P
3.3End, the optocoupler (OT of taking alarm/output circuit
2, OT
4).External input terminals (the T of timer 1, timer 0
1, T
0) connect DIP switch (SW); External crystal oscillator end (X
1, X
2) meet crystal oscillator (QY
1), electric capacity (C
9, C
10); Reset terminal (RESET) meets two nor gate (U
8B) output; Memory, external memory reservoir selecting side (EA/VP) meets power positive end (V
CC); External data memory read-write gating signal output (RD, WR) meets data storage (U
5) read allow line (OE), write and allow line (WE), write allow line (WR) also with two nor gate (U
8A) input connect.
Eight D-latch (U
4) 74HC373 removes D
0～D
7Meet data/address bus, Q
0～Q
7Ground connection location bus, gating end (LE) connect single-chip microcomputer and allow to latch outside the output (ALE/P), its output enable end OE ground connection.
8 * 8K position CMOS static RAM (SRAM) (U
5) 6264 remove D
0～D
7Meet data/address bus, A
0～A
12Outside the bus of ground connection location, sheet choosing end (CS
1) meet decoder (U
7) Y
0End, sheet choosing end (CS
2) meet power positive end (V
CC).
Eight D flip-flop (U
6) D of 74HC273
1～D
8Connect data/address bus, output (Q
1～Q
4) meet four tunnel green LED (LD respectively
1～LD
4), be used for the sensor states indication.Resistance (R
11～R
14) be LED (LD
1～LD
4) current-limiting resistance.CLK termination nor gate (U
8A) output, CLR termination power anode.
3-8 line decoder (U
7) address choice input (A, B, C) the ground connection location bus of 74HC138, output (Y
1) meet two nor gate (U
8A) input, output (Y
2, Y
3) make standby address port (ADDR
1, ADDR
2), E
1, E
2Terminals, E
3Connect power positive end.
Two input nor gate (U
8A) and (U
8B) be two among 4 * 2 input nor gate 74HCO2, its 3rd (U
8C) in Fig. 7, be connected into not gate and use.
Microprocessor monitors circuit (U
9) MAX706 and peripheral reset button (RST), diode (D thereof
21) and not gate (U
8A) form the monitoring and reset circuit, its output meets single-chip microcomputer (U
3) reset terminal (RESET).
Warning output circuit on warning shown in Figure 7/out-put supply plate is by photoelectrical coupler, transistor (Q
1～Q
3), relay (J
0, J
1), light emitting diode (LD
5, LD
6) wait composition.
Two input nor gate (U
8C) be connected into behind the door non-ly, its input meets single-chip microcomputer (U
3) output (P
16), its output is through resistance (R
16) meet transistor (Q
1) base stage, the red LED (LD that uses as alarm lamp
5, LD
6) and current-limiting resistance (R
15) connect afterwards at transistor (Q
1) collector loop in do load.
Transistor (Q
2) the formation the second tunnel warning/output loop.Single-chip microcomputer (U
3) INT
1End is through block signal transmission line socket P
3.2Termination optocoupler (OT
2) elementary negative terminal, two optocoupler (OT
1, OT
2) input forward connect the back, through resistance (R
17) meet power positive end (V
CC), optocoupler (OT
2) output be connected to transistor (Q
2) between the base stage, colelctor electrode, relay (J
0) make transistor (Q
2) collector loop load, with protection diode (D
22) parallel connection.Relay (J
0) normal battle of (J
0-1) insert in the on-the-spot relevant device control loop.
Transistor (Q
3), optocoupler (OT
3, OT
4), relay (J
1) and diode (D
23) constitute Third Road warning/output loop, identical with the second the tunnel; The input in this loop, be optocoupler (OT
4) negative terminal at input two ends, through report to the police carrying out the P of signal transmission line socket
3.3Termination single-chip microcomputer (U
3) INT
0End.Relay (J
1) normal battle of (J
1-1) insert in the tinkle of bells alarm execution loop.
Power circuit on the warning/out-put supply plate adopts the high switching power supply of Electro Magnetic Compatibility, with the 12V dc voltage conversion be+12V ,-12V ,+24V ,+5V (V
CC) multiple power supplies voltage.
Detecting unit is the requirement that reaches the intrinsic safety type circuit, and used integrated circuit is generally all selected the Low-Power CMOS circuit for use.Circuit in the mainframe box and external pyroelectric infrared sensor circuit are pressed essential safe type (i) design, and power supply is provided by the power supply box of Flameproof and intrinsically safe.
The control of detecting unit is output as passive contact, and the explosion-proof chamber by intrinsic safety electric source is connected with other antiknock device.Output passes through one-level relay electromagnetic isolation again after isolating through photoelectricity.And, control output employing equipment parking locking control, promptly only control stops not control startup.
Power supply box is converted to the output of 12V direct current with the 127V AC supply voltage, for Flameproof and intrinsically safe designs.Be input as flame-proof type, be output as intrinsic safety type, have short circuit, overcurrent, over-voltage protecting function.Direct current output is isolated with input is complete.
Remove last exception, the used single-chip microcomputer of detecting unit of the present utility model also can adopt data processing speed DSP computer faster, that is, and and the software programmable digital signal processor.Its adopts Harvard's memory construction, has special multiplier, adopts the instruction pipeline queue operation, uses the DSP instruction, is used for realizing fast the Processing Algorithm of various data signals.Concrete American TI Company TMS320VC5402 chip, growth data memory, program storage, the WATCHDOG program running monitoring circuit in its peripheral circuit of adopting.This chip has the internal storage of 16K and the external program memory of 1M, the addressability of 64K I/O, has the frequently outer and 100MPIS of 100MHZ, is the ability of 100,000,000 ordering calculations of per second.DSP is mainly used in digital filtering and the personnel movement mode data resolves in native system.
Operating principle:
A plurality of pyroelectric infrared sensors are installed in the deathtrap, when the staff near the deathtrap and when move the deathtrap, the variation that human infrared radiation causes will be detected and be converted into the signal of telecommunication by sensor, and the signal of telecommunication of sensor output is through preamplifier (A
1) amplify wave filter (A
2) after the filtering, send detecting unit to, send into analog channel selector switch (U
2), select a certain road signal to send A/D converter (U
1), through the A/D conversion analog signals of exporting being converted to digital quantity, the digital quantity after the conversion send single-chip microcomputer (U
3) handle single-chip microcomputer (U
3) system under programme-control to the data high speed processing, judge the route of mobile personnel after, to alarm output plate output two path control signal: a route single-chip microcomputer (U
3) P
16The end output low level is through not gate (U
8C) anti-phase output high level, make the transistor (Q of alarm output plate
1) conducting, red LED (LD
5, LD
6) luminous, send visual alarm; Another route single-chip microcomputer (U
3) INT
0The end output low level is through optocoupler (OT
3) isolation coupling, transistor (Q
3) conducting, relay (J
1) the action adhesive, the normal (J of making war
1-1) connect the acoustic alarm device, send the warning the tinkle of bells.When personnel enter the deathtrap, single-chip microcomputer (U
3) output Third Road control signal: by single-chip microcomputer (U
3) INT
1The end output low level is through optocoupler (OT
1) isolation coupling, transistor (Q
2) conducting, relay (J
0) the action adhesive, the normal (J of making war
0-1) connect, on-the-spot relevant device is stopped immediately and locking by control loop.When artificial compulsory commutation locking was controlled, the sound of detecting unit, visual alarm were still effective.
The element type and spec:
Photoelectrical coupler OT1～OT
4: the TLP521-2 resistance R8：82～100KΩ
Triode Q1、Q
2、Q
3: the C9013 resistance R9：5.1～12KΩ
Light emitting diode LD1～LD
4: green resistance R10：1～3KΩ
Light emitting diode LD5、LD
6: red resistance R11～R
15：330～510KΩ
Voltage-stabiliser tube D1: the LM385-2.5 resistance R16：2～4.7KΩ
Diode D21: the 1N4148 resistance R17、R18：1～2KΩ
Diode D22、D
23: 1N4001 capacitor C1：51～120pF
DIP switch SW:DIP-2 capacitor C2：0.01～0.047μF
Potentiometer W
1: 5.1～12K Ω capacitor C
3: 3300～6800PF
Potentiometer W
2: 220～510K Ω capacitor C
4, C
5: 22～47 μ F
Resistance R
1: 33～62K Ω capacitor C
6: 0.047～0.1 μ F
Resistance R
2: 36～62K Ω capacitor C
7: 1000～2200PF
Resistance R 3:36～62K Ω capacitor C
8: 4.7～22 μ F
Resistance R
4: 5.1～15K Ω capacitor C
9, C10:20PF
Resistance R
5: 5.1～15K Ω capacitor C
11:0.01～0.022 μ F
Resistance R
6: 12～33K Ω capacitor C
12: 10～22 μ F
Resistance R
7: 82～100K Ω
Claims (5)
1. mining intelligent type human body sensing warning device, comprise power unit, detecting unit, pyroelectric infrared sensor, detecting unit comprises computer, signal amplifier, warning/output circuit, it is characterized in that: said power unit is the power supply box of Flameproof and intrinsically safe, and mainframe box and pyroelectric infrared sensor that detecting unit is housed in it are intrinsic safety type equipment.
2. mining intelligent type human body sensing warning device according to claim 1, it is characterized in that: said pyroelectric infrared sensor is at least two, is connected to outside the mainframe box, contains data acquisition circuit in the detection cell circuit.
3. mining intelligent type human body sensing warning device according to claim 2, it is characterized in that: said pyroelectric infrared sensor is four.
4. mining intelligent type human body sensing warning device according to claim 1 is characterized in that: said computer is Flash type single-chip microcomputer (U
3).
5. mining intelligent type human body sensing warning device according to claim 1, it is characterized in that: said computer is the DSP digital signal processor.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 200420039814 CN2700568Y (en) | 2004-04-16 | 2004-04-16 | Intelligent human body inductive alarm device for mining |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 200420039814 CN2700568Y (en) | 2004-04-16 | 2004-04-16 | Intelligent human body inductive alarm device for mining |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN2700568Y true CN2700568Y (en) | 2005-05-18 |
Family
ID=34774021
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN 200420039814 Expired - Fee Related CN2700568Y (en) | 2004-04-16 | 2004-04-16 | Intelligent human body inductive alarm device for mining |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN2700568Y (en) |
Cited By (12)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101160004B (en) * | 2007-10-30 | 2010-09-15 | 南开大学 | Intelligent control system of lighting apparatus |
| CN101936185A (en) * | 2010-09-29 | 2011-01-05 | 山东隆泰矿业设备有限公司 | Methane locking alarm |
| CN101634838B (en) * | 2009-08-03 | 2012-10-24 | 铜陵市瑞杰科技有限责任公司 | Automatic intelligent-induction electricity-saving switch and induction method thereof |
| CN102765592A (en) * | 2012-07-25 | 2012-11-07 | 大同煤矿集团有限责任公司 | Safety protection system with function of preventing belt conveyor from hurting people for coal preparation plant |
| CN102877888A (en) * | 2012-09-26 | 2013-01-16 | 三一重型装备有限公司 | Proximity warning system |
| CN101169362B (en) * | 2006-10-26 | 2013-07-17 | 上海贝岭股份有限公司 | Indoor fog detected and controlled integrated circuit |
| CN103399352A (en) * | 2013-07-26 | 2013-11-20 | 广州唯创电子有限公司 | Pyroelectric human body transducer-based direction recognition device and recognition method thereof |
| CN104912595A (en) * | 2015-06-04 | 2015-09-16 | 万顺 | Mining man-machine locking system and control method |
| CN106043782A (en) * | 2016-07-08 | 2016-10-26 | 江苏永钢集团有限公司 | Full-automatic strapping machine safety interlocking control system |
| CN106801617A (en) * | 2017-03-21 | 2017-06-06 | 中国矿业大学(北京) | Coal mine down-hole personnel injures early warning system |
| CN106988783A (en) * | 2017-04-01 | 2017-07-28 | 徐州兆恒工控科技有限公司 | Underground coal mine development machine safeguard protection acousto-optic prior-warning device |
| CN110080744A (en) * | 2019-04-30 | 2019-08-02 | 南京信息工程大学 | Underground detection device and preparation method based on monolithic integrated sensor |
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2004
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Cited By (14)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101169362B (en) * | 2006-10-26 | 2013-07-17 | 上海贝岭股份有限公司 | Indoor fog detected and controlled integrated circuit |
| CN101160004B (en) * | 2007-10-30 | 2010-09-15 | 南开大学 | Intelligent control system of lighting apparatus |
| CN101634838B (en) * | 2009-08-03 | 2012-10-24 | 铜陵市瑞杰科技有限责任公司 | Automatic intelligent-induction electricity-saving switch and induction method thereof |
| CN101936185A (en) * | 2010-09-29 | 2011-01-05 | 山东隆泰矿业设备有限公司 | Methane locking alarm |
| CN102765592A (en) * | 2012-07-25 | 2012-11-07 | 大同煤矿集团有限责任公司 | Safety protection system with function of preventing belt conveyor from hurting people for coal preparation plant |
| CN102877888B (en) * | 2012-09-26 | 2015-03-18 | 三一重型装备有限公司 | Proximity warning system |
| CN102877888A (en) * | 2012-09-26 | 2013-01-16 | 三一重型装备有限公司 | Proximity warning system |
| CN103399352A (en) * | 2013-07-26 | 2013-11-20 | 广州唯创电子有限公司 | Pyroelectric human body transducer-based direction recognition device and recognition method thereof |
| CN104912595A (en) * | 2015-06-04 | 2015-09-16 | 万顺 | Mining man-machine locking system and control method |
| CN104912595B (en) * | 2015-06-04 | 2017-01-18 | 万顺 | Mining man-machine locking system and control method |
| CN106043782A (en) * | 2016-07-08 | 2016-10-26 | 江苏永钢集团有限公司 | Full-automatic strapping machine safety interlocking control system |
| CN106801617A (en) * | 2017-03-21 | 2017-06-06 | 中国矿业大学(北京) | Coal mine down-hole personnel injures early warning system |
| CN106988783A (en) * | 2017-04-01 | 2017-07-28 | 徐州兆恒工控科技有限公司 | Underground coal mine development machine safeguard protection acousto-optic prior-warning device |
| CN110080744A (en) * | 2019-04-30 | 2019-08-02 | 南京信息工程大学 | Underground detection device and preparation method based on monolithic integrated sensor |
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