CN105973461B - A kind of reinforced earth bulkhead vibration alarm system based on sound-light alarm - Google Patents
A kind of reinforced earth bulkhead vibration alarm system based on sound-light alarm Download PDFInfo
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- CN105973461B CN105973461B CN201610459999.5A CN201610459999A CN105973461B CN 105973461 B CN105973461 B CN 105973461B CN 201610459999 A CN201610459999 A CN 201610459999A CN 105973461 B CN105973461 B CN 105973461B
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Classifications
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- G—PHYSICS
- G01—MEASURING; TESTING
- G01H—MEASUREMENT OF MECHANICAL VIBRATIONS OR ULTRASONIC, SONIC OR INFRASONIC WAVES
- G01H17/00—Measuring mechanical vibrations or ultrasonic, sonic or infrasonic waves, not provided for in the preceding groups
-
- G—PHYSICS
- G08—SIGNALLING
- G08B—SIGNALLING OR CALLING SYSTEMS; ORDER TELEGRAPHS; ALARM SYSTEMS
- G08B21/00—Alarms responsive to a single specified undesired or abnormal condition and not otherwise provided for
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- G—PHYSICS
- G08—SIGNALLING
- G08C—TRANSMISSION SYSTEMS FOR MEASURED VALUES, CONTROL OR SIMILAR SIGNALS
- G08C17/00—Arrangements for transmitting signals characterised by the use of a wireless electrical link
- G08C17/02—Arrangements for transmitting signals characterised by the use of a wireless electrical link using a radio link
Abstract
The invention discloses a kind of, and the reinforced earth bulkhead based on sound-light alarm shakes alarm system, including controller, the reservoir being connected respectively with controller, AD conversion unit and wireless signal transmitting unit, the shock sensor etc. being connected with AD conversion unit.Photoelectrical coupler is provided in sound light alarming circuit of the invention, its electrical isolation capabilities that photoelectrical coupler is cleverly utilized and anti-interference ability, compared to traditional sound light alarming circuit, it is with higher anti-breakdown ability, stability of the invention is greatly improved, the present invention is avoided to malfunction.Low distortion anti-jamming signal processing unit of the invention uses unique low distortion amplifier circuit and closed loop adjusts interference and insulation circuit and is used in combination, which may insure that analog signal keeps very high fidelity after amplification；Closed loop, which adjusts interference and insulation circuit, thoroughly interference signal to be isolated, and interference signal is avoided to influence detection accuracy of the invention and cause false alarm phenomenon.
Description
Technical field
The present invention relates to monitoring technical field, in particular to a kind of reinforced earth bulkhead vibration alarm systems based on sound-light alarm
System.
Background technique
Reinforced earth bulkhead is by lacing wire, shingle nail and a kind of NEW TYPE OF COMPOSITE supporting construction constituted that bankets.Relative to
Traditional gravity retaining wall, reinforced earth bulkhead are a kind of flexible structure, have preferable compatibility of deformation and anti-seismic performance, right
The bearing requirements of ground are not also high, and with incomparable excellent of his structure of some bases such as good economy and property handsome in appearance
More property；Therefore, it is widely used in the engineerings such as highway, water conservancy, urban construction and railway.
When earthquake or settlement of foundation occurs, reinforced earth bulkhead is due to being generated vibration by external impacts, such as
Fruit vibration is excessive to be easy to cause reinforced earth bulkhead to collapse, and brings very big security risk.In view of the above-mentioned problems, generalling use at present
Vibration alarm system carries out detection and in the excessive alarm of vibration to vibration caused by reinforced earth bulkhead with the masses around reminding
It withdraws in time.The influence of signal however, existing vibration alarm system is easy to be interfered, causes its that false alarm phenomenon occurs,
Make vibration alarm system that can not play effective warning effect, very big threat is brought to the life of the surrounding masses, property safety.
Summary of the invention
It is an object of the invention to overcome there is no good alarm systems at present can be very big in reinforced earth bulkhead generation
The defect sounded an alarm when vibration provides a kind of reinforced earth bulkhead vibration alarm system based on sound-light alarm.
The purpose of the invention is achieved by the following technical solution: a kind of reinforced earth bulkhead vibration alarm based on sound-light alarm
System, including controller, the reservoir being connected respectively with controller, AD conversion unit and wireless signal transmitting unit, with
The shock sensor that AD conversion unit is connected, the wireless signal being connected by wireless network with wireless signal transmitting unit
Receiving unit, and the PC computer being connected with reception of wireless signals unit；In order to preferably realize that the present invention, the present invention also wrap
The sound light alarming circuit being connected with controller is included, and the low distortion being arranged between shock sensor and AD conversion unit
Anti-jamming signal processing unit.
Further, the low distortion anti-jamming signal processing unit amplifies electricity with low distortion by low distortion amplifier circuit
The closed loop that road is connected adjusts interference and insulation circuit composition.
The low distortion amplifier circuit is by amplifier P1, amplifier P2, triode VT1, triode VT2, positive and amplification
The capacitor C2 that the anode of device P1 is connected, cathode is connected with the negative pole end of amplifier P1, the cathode phase of anode and amplifier P1
The capacitor C1 that connection, cathode are grounded, the resistance R1 being serially connected between the anode of amplifier P1 and the cathode of capacitor C1 are serially connected in electricity
Hold the resistance R2 between the anode of C1 and the collector of triode VT1, one end is connected with the emitter of triode VT1, is another
The resistance pole R4, N of end ground connection is connected with the anode of amplifier P2, the pole P is connected after resistance R3 with the output end of amplifier P1
The diode D1 connect, one end is connected with the output end of amplifier P2, the other end is grounded after resistance R5 the resistance pole R6, N with
The diode D3, N that the tie point of resistance R5 and resistance R6 are connected, the pole P is connected after capacitor C3 with the base stage of triode VT2
The diode D2 that pole is connected with the pole P of diode D3, the pole P is connected with the collector of triode VT2, is serially connected in diode D2
The pole P and triode VT2 base stage between resistance R7, anode be connected with the emitter of triode VT2, cathode then with three poles
The pole capacitor C4 and N that the base stage of pipe VT1 is connected is connected with the base stage of triode VT1, the pole P then adjusts with closed loop and interferes
The diode D4 composition that isolation circuit is connected；The anode of the amplifier P1 is connected with shock sensor；The amplifier
The output end of P2 is connected with the base stage of triode VT2 and closed loop adjusting interference and insulation circuit simultaneously, its cathode is grounded；Described three
The base stage of pole pipe VT1 adjusts interference and insulation circuit with closed loop and is connected；The collector of the triode VT2 connects 15V voltage.
The closed loop adjusts interference and insulation circuit by triode VT3, triode VT4, triode VT5, triode VT6, just
The capacitor pole C5, P and triode VT4 that pole is connected with the output end of amplifier P2, cathode is connected with the base stage of triode VT3
Collector be connected, the diode D5 that the pole N is connected after resistance R8 with the collector of triode VT3, one end and triode
The resistance R9 that the emitter of VT3 is connected, the other end is connected after resistance R11 with the emitter of triode VT4, cathode and three
The capacitor C7 that the collector of pole pipe VT6 is connected, anode is connected after inductance L2 with the pole N of diode D5, one end and three poles
The resistance R12 that the base stage of pipe VT4 is connected, the other end is connected with AD conversion unit, is serially connected in the emitter of triode VT5
Resistance R10 between the pole P of diode D4, one end is connected with the pole P of diode D4, the other end after resistance R13 with three
The inductance L1 that the emitter of pole pipe VT6 is connected, and anode is connected with the base stage of triode VT5, cathode and triode VT6
Base stage be connected capacitor C6 composition；The collector of the triode VT5 is connected with the tie point of resistance R9 and resistance R11
It connects.
The sound light alarming circuit is by triode VT7, triode VT8, triode VT9, triode VT10, photoelectrical coupler
U, the capacitor pole C8, P and three that cathode is connected after resistance R15 with the base stage of triode VT7, anode is then connected with controller
The diode D6 that the emitter of pole pipe VT8 is connected, the pole N is connected after resistance R14 with the cathode of capacitor C8, one end and three poles
The emitter of pipe VT7 is connected, the resistance R16 of other end ground connection, and one end is connected with the collector of triode VT7, the other end
The resistance pole R17, N being connected after resistance R18 with the first input end of photoelectrical coupler U after resistance R19 with photoelectric coupling
The diode D7 that the first output end of device U is connected, the pole P is connected with the collector of triode VT9, anode and photoelectrical coupler
The capacitor C9 that the first output end of U is connected, cathode is connected with the base stage of triode VT9, is serially connected in triode VT9 and transmitting
Resistance R21 between pole and the collector of triode VT10, anode is connected with the emitter of triode VT9, cathode sequentially passes through
The capacitor C11 being connected after alarm BL and indicator light VL and resistance R20 with the second output terminal of photoelectrical coupler U, one end
It is connected with the emitter of triode VT10, the resistance R22 of other end ground connection, and anode and the second of photoelectrical coupler U defeated
The capacitor C10 composition that outlet is connected, cathode is connected with the base stage of triode VT10；The base stage and three of the triode VT8
The collector of pole pipe VT7 is connected, its collector is then connected with the second input terminal of photoelectrical coupler U；The diode D7
The pole N connect 15V voltage.
The present invention compared with the prior art, have the following advantages that and the utility model has the advantages that
(1) present invention issues alarm signal, notice surrounding when the vibration that reinforced earth bulkhead generates is greater than maximum permissible value
People withdraw in time；Meanwhile real-time collected vibration data can also be sent to monitoring room by wireless network by the present invention,
Monitoring personnel can analyze the stress condition of reinforced earth bulkhead according to the vibration data of real-time change.
(2) it is provided with photoelectrical coupler in sound light alarming circuit of the invention, photoelectrical coupler is cleverly utilized
Electrical isolation capabilities and anti-interference ability are greatly mentioned compared to traditional sound light alarming circuit with higher anti-breakdown ability
High stability of the invention, avoids the present invention from malfunctioning.
(3) low distortion anti-jamming signal processing unit of the invention uses unique low distortion amplifier circuit and closed loop tune
It saves interference and insulation circuit to be used in combination, which may insure that analog signal keeps very high fidelity after amplification
Degree；Closed loop, which adjusts interference and insulation circuit, thoroughly interference signal to be isolated, and avoid interference signal from influencing of the invention
Detection accuracy and cause false alarm phenomenon.
Detailed description of the invention
Fig. 1 is the structural diagram of the present invention.
Fig. 2 is the electrical block diagram of low distortion anti-jamming signal processing unit of the invention.
Fig. 3 is the structural schematic diagram of sound light alarming circuit of the invention.
Specific embodiment
The present invention is described in further detail below with reference to embodiment, but embodiments of the present invention are not limited to
This.
Embodiment
As shown in Figure 1, reinforced earth bulkhead of the invention based on sound-light alarm shakes alarm system, mainly by controller,
Reservoir, sound light alarming circuit, AD conversion unit, low distortion anti-jamming signal processing unit, shock sensor, wireless signal
Transmitting unit, reception of wireless signals unit and 9 part of PC computer composition.
Wherein, which is realized using AT89S51 single-chip microcontroller.The base of reinforced earth bulkhead is arranged in the shock sensor
Face preferentially uses YT-JB3 type intelligence shock sensor to realize for acquiring the vibration signal of reinforced earth bulkhead.The low mistake
The input terminal of true anti-jamming signal processing unit is connected with the signal output end of shock sensor.The AD conversion unit uses
ADC0832 conversion chip, CH1 pin are connected with the output end of low distortion anti-jamming signal processing unit, and DO pin is then
It is connected with the P0 pin of AT89S51 single-chip microcontroller.The reservoir for storing the permitted maximum vibration of reinforced earth bulkhead in advance
Value, is connected with the PSEN pin of AT89S51 single-chip microcontroller.The wireless signal transmitting unit be connected then with AT89S51 monolithic
The P1.1 pin of machine is connected.The wireless signal transmitting unit then passes through wireless network and is connected with reception of wireless signals unit.
The PC computer is then connected with the output end of the reception of wireless signals unit.The sound light alarming circuit then with AT89S51 single-chip microcontroller
P1.2 pin be connected.The wireless signal transmitting unit preferentially uses BCM1A wireless signal transmitting module, which connects
Receiving unit preferentially uses BCM1B reception of wireless signals module to realize.
As shown in Fig. 2, the low distortion anti-jamming signal processing unit is by low distortion amplifier circuit, with low distortion amplifier circuit
The closed loop being connected adjusts interference and insulation circuit composition.
Wherein, the low distortion amplifier circuit is by amplifier P1, amplifier P2, triode VT1, triode VT2, resistance R1,
Resistance R2, resistance R3, resistance R4, resistance R5, resistance R6, resistance R7, capacitor C1, capacitor C2, capacitor C3, capacitor C4, diode
D1, diode D2, diode D3 and diode D4 composition.
When connection, capacitor C2 anode be connected with the anode of amplifier P1, the negative pole end phase of its cathode and amplifier P1
Connection.The anode of capacitor C1 is connected with the cathode of amplifier P1, its cathode is grounded.Resistance R1 is serially connected in the anode of amplifier P1
Between the cathode of capacitor C1.Resistance R2 is serially connected between the anode of capacitor C1 and the collector of triode VT1.The one of resistance R4
End is connected with the emitter of triode VT1, its other end is grounded.The pole N of diode D1 is connected with the anode of amplifier P2,
Its pole P is connected after resistance R3 with the output end of amplifier P1.One end of resistance R6 is connected with the output end of amplifier P2,
Its other end is grounded after resistance R5.The pole N of diode D3 is connected with the tie point of resistance R5 and resistance R6, its pole P is through electricity
It is connected after holding C3 with the base stage of triode VT2.The pole N of diode D2 is connected with the pole P of diode D3, its pole P and three poles
The collector of pipe VT2 is connected.Resistance R7 is serially connected between the pole P of diode D2 and the base stage of triode VT2.Capacitor C4 is just
Pole is connected with the emitter of triode VT2, its cathode is then connected with the base stage of triode VT1.The pole N and three of diode D4
The base stage of pole pipe VT1 is connected, its pole P then adjusts interference and insulation circuit with closed loop and is connected.
Meanwhile the anode of the amplifier P1 is connected with shock sensor；The output end of the amplifier P2 simultaneously with
The base stage of triode VT2 is connected with closed loop adjusting interference and insulation circuit, its cathode is grounded.The base stage of the triode VT1 with
Closed loop adjusts interference and insulation circuit and is connected.The collector of the triode VT2 connects 15V voltage.The low distortion amplifier circuit can
To ensure that analog signal keeps very high fidelity after amplification.
In addition, the closed loop adjusts interference and insulation circuit by triode VT3, triode VT4, triode VT5, triode
VT6, resistance R8, resistance R9, resistance R10, resistance R11, resistance R12, resistance R13, inductance L1, inductance L2, capacitor C5, capacitor
C6, capacitor C7 and diode D5 composition.
When connection, capacitor C5 anode be connected with the output end of amplifier P2, the base stage phase of its cathode and triode VT3
Connection.The pole P of diode D5 is connected with the collector of triode VT4, its current collection of pole N after resistance R8 with triode VT3
Pole is connected.One end of resistance R9 is connected with the emitter of triode VT3, its other end after resistance R11 with triode VT4
Emitter be connected.The cathode of capacitor C7 is connected with the collector of triode VT6, its anode after inductance L2 with diode
The pole N of D5 is connected.One end of resistance R12 is connected with the base stage of triode VT4, its other end and ADC0832 conversion chip
CH1 pin be connected.Resistance R10 is serially connected between the emitter of triode VT5 and the pole P of diode D4.The one of inductance L1
End is connected with the pole P of diode D4, its other end is connected after resistance R13 with the emitter of triode VT6.Capacitor C6's
Anode is connected with the base stage of triode VT5, its cathode is connected with the base stage of triode VT6.The current collection of the triode VT5
Pole is connected with the tie point of resistance R9 and resistance R11.The closed loop adjusts interference and insulation circuit can be thoroughly to interference signal
It is isolated.
Low distortion anti-jamming signal processing unit uses unique low distortion amplifier circuit and closed loop adjusts interference and insulation
Circuit is used in combination, which may insure that analog signal keeps very high fidelity, signal warp after amplification
Closed loop adjusting interference and insulation circuit is set more accurately to identify interference signal after crossing low distortion amplifier circuit processing, and right
Interference signal is isolated, in this way, the combination by two circuits can be isolated interference signal with more thorough, is avoided
Interference signal influences detection accuracy of the invention, sounds an alarm the present invention more accurately.
For the better implementation present invention, as shown in figure 3, the sound light alarming circuit is by triode VT7, triode VT8, three
Pole pipe VT9, triode VT10, photoelectrical coupler U, resistance R14, resistance R15, resistance R16, resistance R17, resistance R18, resistance
R19, resistance R20, resistance R21, resistance R22, capacitor C8, capacitor C9, capacitor C10, capacitor C11, alarm BL refer to lamp lamp VL,
Diode D6 and diode D7 composition.
Wherein, the cathode of capacitor C8 be connected after resistance R15 with the base stage of triode VT7, its anode then with AT89S51
The P1.2 pin of single-chip microcontroller is connected.The pole P of diode D6 is connected with the emitter of triode VT8, its pole N is through resistance R14
It is connected afterwards with the cathode of capacitor C8.One end of resistance R16 is connected with the emitter of triode VT7, its other end is grounded.Electricity
One end of resistance R17 is connected with the collector of triode VT7, its other end is defeated with the first of photoelectrical coupler U after resistance R18
Enter end to be connected.The pole N of diode D7 is connected after resistance R19 with the first output end of photoelectrical coupler U, its pole P and three
The collector of pole pipe VT9 is connected.Capacitor C9 anode be connected with the first output end of photoelectrical coupler U, its cathode and three
The base stage of pole pipe VT9 is connected.Resistance R21 is serially connected between triode VT9 and emitter and the collector of triode VT10.Electricity
The anode of appearance C11 is connected with the emitter of triode VT9, its cathode is sequentially through alarm BL and indicator light VL and resistance
It is connected after R20 with the second output terminal of photoelectrical coupler U.One end of resistance R22 is connected with the emitter of triode VT10,
Its other end ground connection.The anode of capacitor C10 is connected with the second output terminal of photoelectrical coupler U, its cathode and triode VT10
Base stage be connected.The base stage of the triode VT8 is connected with the collector of triode VT7, its collector then with photoelectricity coupling
The second input terminal of clutch U is connected.The pole N of the diode D7 connects 15V voltage.
It is provided with photoelectrical coupler in the sound light alarming circuit, the electrical isolation capabilities of photoelectrical coupler are cleverly utilized
And anti-interference ability, the present invention is greatly improved with higher anti-breakdown ability compared to traditional sound light alarming circuit
Stability, avoid the present invention from malfunctioning.
When work, the vibration signal of shock sensor acquisition reinforced earth bulkhead and that signal is transferred to low distortion is anti-interference
Signal processing unit, the low distortion anti-jamming signal processing unit are sent to AD conversion unit after handling signal, should
AD conversion unit, which is converted to analog signal, is sent to controller behind digital signal, controller carries out identifying processing to signal
And be compared with the numerical value having previously been stored in reservoir, when the vibration of reinforced earth bulkhead is more than the number being stored in reservoir
Sound light alarming circuit is sent a signal to when value, and sound light alarming circuit is made to alarm.The controller is also sent a signal to wirelessly simultaneously
Signal transmitter unit is sent to reception of wireless signals unit by wireless network by wireless signal transmitting unit, and monitoring personnel is logical
Crossing PC computer can be appreciated that monitoring result.
As described above, the present invention can be realized well.
Claims (3)
1. a kind of reinforced earth bulkhead based on sound-light alarm shakes alarm system, including controller, it is connected respectively with controller
Reservoir, AD conversion unit and wireless signal transmitting unit, the shock sensor being connected with AD conversion unit passes through
The reception of wireless signals unit that wireless network is connected with wireless signal transmitting unit, and be connected with reception of wireless signals unit
The PC computer connect；It is characterized in that, further including the sound light alarming circuit being connected with controller, and it is arranged in shock sensor
Low distortion anti-jamming signal processing unit between AD conversion unit；
The low distortion anti-jamming signal processing unit is by low distortion amplifier circuit, the closed loop being connected with low distortion amplifier circuit
Adjust interference and insulation circuit composition；
The low distortion amplifier circuit is by amplifier P1, amplifier P2, triode VT1, triode VT2, positive and amplifier P1
Anode be connected, the capacitor C2 that cathode is connected with the negative pole end of amplifier P1, anode be connected with the cathode of amplifier P1,
The capacitor C1 of cathode ground connection, the resistance R1 being serially connected between the anode of amplifier P1 and the cathode of capacitor C1 are serially connected in capacitor C1
Anode and triode VT1 collector between resistance R2, one end is connected with the emitter of triode VT1, another termination
The resistance pole R4, N on ground is connected with the anode of amplifier P2, the pole P is connected after resistance R3 with the output end of amplifier P1
Diode D1, the resistance pole R6, N and resistance that one end is connected with the output end of amplifier P2, the other end is grounded after resistance R5
The tie point of R5 and resistance R6 are connected, the pole P is connected after capacitor C3 with the base stage of triode VT2 the diode pole D3, N with
The diode D2 that the pole P of diode D3 is connected, the pole P is connected with the collector of triode VT2, is serially connected in the P of diode D2
Resistance R7 between pole and the base stage of triode VT2, anode be connected with the emitter of triode VT2, cathode then with triode
The pole capacitor C4 and N that the base stage of VT1 is connected is connected with the base stage of triode VT1, the pole P then adjusted with closed loop interference every
The diode D4 composition being connected from circuit；The anode of the amplifier P1 is connected with shock sensor；The amplifier P2
Output end adjust that interference and insulation circuit is connected, its cathode is grounded with the base stage of triode VT2 and closed loop simultaneously；Three pole
The base stage of pipe VT1 adjusts interference and insulation circuit with closed loop and is connected；The collector of the triode VT2 connects 15V voltage.
2. a kind of reinforced earth bulkhead based on sound-light alarm according to claim 1 shakes alarm system, which is characterized in that
The closed loop adjusts interference and insulation circuit by triode VT3, triode VT4, triode VT5, triode VT6, positive and amplification
The collector of the output end of device P2 is connected, cathode is connected with the base stage of triode VT3 the capacitor pole C5, P and triode VT4
It is connected, the diode D5 that the pole N is connected after resistance R8 with the collector of triode VT3, the transmitting of one end and triode VT3
The resistance R9 that pole is connected, the other end is connected after resistance R11 with the emitter of triode VT4, cathode and triode VT6's
The capacitor C7 that collector is connected, anode is connected after inductance L2 with the pole N of diode D5, the base of one end and triode VT4
The resistance R12 that pole is connected, the other end is connected with AD conversion unit is serially connected in the emitter and diode of triode VT5
Resistance R10 between the pole P of D4, one end is connected with the pole P of diode D4, the other end after resistance R13 with triode VT6's
The inductance L1 that emitter is connected, and anode is connected with the base stage of triode VT5, the base stage phase of cathode and triode VT6
The capacitor C6 of connection is formed；The collector of the triode VT5 is connected with the tie point of resistance R9 and resistance R11.
3. a kind of reinforced earth bulkhead based on sound-light alarm according to claim 2 shakes alarm system, which is characterized in that
The sound light alarming circuit is by triode VT7, triode VT8, triode VT9, triode VT10, photoelectrical coupler U, cathode warp
It is connected after resistance R15 with the base stage of triode VT7, the capacitor pole C8, P and the triode VT8 that anode is then connected with controller
Emitter be connected, the diode D6 that the pole N is connected after resistance R14 with the cathode of capacitor C8, one end and triode VT7's
The resistance R16 that emitter is connected, the other end is grounded, one end is connected with the collector of triode VT7, the other end is through resistance
The resistance pole R17, N being connected after R18 with the first input end of photoelectrical coupler U after resistance R19 with photoelectrical coupler U
The diode D7 that one output end is connected, the pole P is connected with the collector of triode VT9, anode and the first of photoelectrical coupler U
The capacitor C9 that output end is connected, cathode is connected with the base stage of triode VT9, is serially connected in triode VT9 and emitter and three
Resistance R21 between the collector of pole pipe VT10, anode is connected with the emitter of triode VT9, cathode is sequentially through alarm
The capacitor C11 being connected after BL and indicator light VL and resistance R20 with the second output terminal of photoelectrical coupler U, one end and three poles
The resistance R22 that the emitter of pipe VT10 is connected, the other end is grounded, and the second output terminal phase of anode and photoelectrical coupler U
The capacitor C10 composition that connection, cathode are connected with the base stage of triode VT10；The base stage and triode VT7 of the triode VT8
Collector be connected, its collector is then connected with the second input terminal of photoelectrical coupler U；The pole N of the diode D7 connects
15V voltage.
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201610459999.5A CN105973461B (en) | 2016-06-22 | 2016-06-22 | A kind of reinforced earth bulkhead vibration alarm system based on sound-light alarm |
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| CN201610459999.5A CN105973461B (en) | 2016-06-22 | 2016-06-22 | A kind of reinforced earth bulkhead vibration alarm system based on sound-light alarm |
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| CN105973461B true CN105973461B (en) | 2019-01-08 |
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| Publication number | Priority date | Publication date | Assignee | Title |
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| CN102789674B (en) * | 2011-05-17 | 2014-07-02 | 宝鸡市博远信航电子科技有限责任公司 | Geological disaster networking monitoring pre-warning system |
| CN103175475B (en) * | 2011-12-23 | 2016-11-23 | 同方威视技术股份有限公司 | Bank protection monitoring system |
| CN102694552B (en) * | 2012-06-01 | 2015-03-18 | 邹磊 | Sensor interface module |
| CN203376374U (en) * | 2013-03-12 | 2014-01-01 | 浙江海洋学院 | Voltage sensing module based on photoelectric couplers |
| CN104127937A (en) * | 2014-08-07 | 2014-11-05 | 成都信鑫信息技术有限公司 | Infusion speed detecting and controlling system |
| CN204875873U (en) * | 2015-05-11 | 2015-12-16 | 韩延辉 | Structure foundation lifts monitoring system |
| CN105155599B (en) * | 2015-09-25 | 2017-03-22 | 南京理工大学 | Remote information monitoring and analyzing device and method for cement soil mixing pile |
| CN205879349U (en) * | 2016-06-22 | 2017-01-11 | 中铁二局集团勘测设计院有限责任公司 | Reinforced earth retaining wall shakes alarm system based on acousto -optic warning |
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