CN203682948U - Tower crane security monitoring circuit provided with GPRS (general packet radio service) module - Google Patents
Tower crane security monitoring circuit provided with GPRS (general packet radio service) module Download PDFInfo
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- CN203682948U CN203682948U CN201320686705.4U CN201320686705U CN203682948U CN 203682948 U CN203682948 U CN 203682948U CN 201320686705 U CN201320686705 U CN 201320686705U CN 203682948 U CN203682948 U CN 203682948U
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Abstract
The utility model discloses a tower crane security monitoring circuit provided with a GPRS (general packet radio service) module. The tower crane security monitoring circuit provided with the GPRS module comprises a data acquisition unit, a sampling circuit, a main control circuit, a display circuit, a warning circuit, a relay driving circuit and a GPRS wireless communication circuit, wherein the main control circuit comprises a microprocessor; the data acquisition unit is connected with the sampling circuit, the sampling circuit is connected with the main control circuit, the display circuit, the warning circuit and a wireless communication module are respectively connected with the main control circuit; the data acquisition unit comprises a weighing sensor, a rotation sensor, a variation amplitude sensor, a height sensor, a wind speed sensor, a voltage sensor, a current sensor and a temperature sensor. The power crane security monitoring circuit provided with the GPRS module has the advantages that remote monitoring on a running state of a tower crane can be realized and operation safety and reliability of the tower crane can be improved.
Description
Technical field
The utility model relates to a kind of tower crane security monitoring circuit of the GPRS of being provided with module.
Background technology
Tower crane (tower crane) is called for short tower machine, also claims tower crane, is made up of metal construction, operating mechanism and electric system three parts.Metal construction comprises tower body, swing arm and base etc.Operating mechanism hoists, luffing, revolution and walking four parts.Electric system comprises electrical motor, controller, electric power distribution cabinet, connection line, signal and illumination equipment etc.Along with a large amount of uses of construction trade tower crane in recent years, because transfinite the in violation of rules and regulations all kinds of tower crane safe in operation accidents of the initiation such as operation and tower crane group interference and collision of tower crane frequently occur, cause huge life and property loss.The experience and lessons of safety misadventure show, must carry out in time danger factor and the potential safety hazard in the practical control convenience operational process of actv. supervision ability to tower crane use procedure and behavior, and prevention and the industrial accident of minimizing safety of tower crane occur.
In traditional tower crane safety monitoring instrument, usually adopt the mode of video monitoring, by staff by video the monitoring state to tower machine, this video monitoring mode has that real-time is poor, data processing is slow, transmission distance is short, can not form monitor network carries out the shortcomings such as unified management, simultaneously supervisory circuit is confined to the supervisory circuit of standalone version or tower group of planes control supervisory circuit among a small circle, all exist monitoring range little, be not easy to the shortcomings such as management.This data management to tower machine analysis on accident cause and backstage brings great inconvenience.And this monitor mode moment all need staff on duty, once simultaneously carelessness or absent appears in staff, be easy to occur safety misadventure.
Utility model content
The utility model is the weak point existing in above-mentioned prior art for avoiding, provide a kind of tower crane security monitoring circuit of the GPRS of being provided with module, to realize the remote monitor and control of the running state of tower crane, safety in operation and the reliability of raising tower crane by GPRS technology.
The utility model be technical solution problem by the following technical solutions.
Be provided with the tower crane security monitoring circuit of GPRS module, its constructional feature is to comprise data acquisition unit, sample circuit, governor circuit, display circuit, warning circuit, relay drive circuit and GPRS radio communication circuit; Described governor circuit comprises microprocessor; Described data acquisition unit is connected with described sample circuit, and described sample circuit is connected with described governor circuit, and described display circuit, warning circuit and wireless communication module are all connected with described governor circuit; Described data acquisition unit comprises LOAD CELLS, rotary sensor, luffing sensor, height sensor, air velocity transducer, voltage sensor, current sensor and temperature sensor.
The constructional feature of the tower crane security monitoring circuit of the GPRS of being provided with module of the present utility model is also:
Described display circuit comprises LCD display.
Described sample circuit comprises voltage sampling circuit and current sampling circuit;
As shown in Figure 3, described voltage sampling circuit comprises resistance R 1～R3, capacitor C 1～C3, op amp U3, diode D1 and diode D2; Described voltage sensor is connected with a terminal of described op amp U3, after being connected in series with R3, described resistance R 2, R1 be connected with another terminal of described op amp U3 by resistance R 2, described resistance R 1 is rheochord, described resistance R 3 ground connection; Common point after described diode D1 is connected in series with diode D2 is connected with described resistance R 1, and the common point after described diode D1 is connected in series with diode D2 is also connected with governor circuit; Described capacitor C 1～C3 is all connected with described op amp U3;
As shown in Figure 4, described current sampling circuit comprises resistance R 4～R8, capacitor C 4～C6, op amp U4, diode D3 and diode D4; Described current sensor is connected with a terminal of described op amp U4, after being connected in series with R6, described resistance R 4, R5 be connected with another terminal of described op amp U4 by resistance R 4, described resistance R 5 is rheochord, described resistance R 6 ground connection; Common point after described diode D3 is connected in series with diode D4 is connected with described resistance R 5, and the common point after described diode D3 is connected in series with diode D4 is also connected with governor circuit; Described capacitor C 4～C6 is all connected with described op amp U4.
Described warning circuit comprises audible alarm circuit and LED illuminating circuit;
As shown in Figure 5, described audible alarm circuit comprises resistance R 9～R11, aerotron Q1 and buzzer phone U5; The base stage of described aerotron Q1 is connected with described governor circuit by described resistance R 9, and the two ends of described resistance R 10 are connected in the base stage and emitter of described aerotron Q1; The collecting electrode of described aerotron Q1 is connected with a terminal of described buzzer phone U5, and another terminal of described buzzer phone U5 connects power supply VCC by resistance R 11;
As shown in Figure 6, described LED illuminating circuit comprises resistance R 12～R13, aerotron Q2 and LED 1; The base stage of described aerotron Q2 is connected with described governor circuit by described resistance R 13, the grounded emitter of described aerotron Q2, and the collecting electrode of described aerotron Q2 is connected power supply VCC by LED 1 with resistance R 12 successively.
Described GPRS radio communication circuit comprises GSM/GPRS chip U6, SIM chip U7, resistance R 15～R27, capacitor C 7～C9, aerotron Q3～Q4 and LED _ SIM.
Described relay drive circuit comprises transistor output photoelectric coupler U8, resistance R 28～R32, darlington transistor array U9, diode D5, relay K 1 and the coupling end P5 being connected with described governor circuit; Described coupling end P5 is connected with described darlington transistor array U9 by transistor output photoelectric coupler U8, and described darlington transistor array U9 is connected with described relay K 1, drives described relay K 1 by described darlington transistor array U9.
The described tower crane security monitoring circuit that is provided with GPRS module also comprises USB interface.
The described tower crane security monitoring circuit that is provided with GPRS module also comprises input block, and described input block is keyboard or action button.
Described temperature sensor is digital temperature sensor DS18B20.
Compared with the prior art, the utility model beneficial effect is embodied in:
The tower crane security monitoring circuit that is provided with GPRS module of the present utility model, use GPRS wireless communication technology, the working data that tower machine monitoring circuit terminal is collected arrives the monitoring software of server end by Internet Transmission, realized large-scale tower machine monitoring.Use GPRS Radio Transmission Technology, can set up the tower machine group control system that is not subject to region and distance limit, by the supervisory circuit platform of far-end, realize the control and management to a tower group of planes.Adopt GPRS and internet seamless link technology to build remote monitoring and administration platform, can realize easily the transmission of tower machine working data cross-region, realize unified monitoring and management to a tower group of planes.
The tower crane security monitoring circuit that is provided with GPRS module of the present utility model, be applicable to the industries such as mining machinery, hoisting transporter tool, road machinery, environmental sanitation machinery, light industry and machinery, there is the remote monitor and control of the running state that can realize tower crane, the advantage such as safety in operation and reliability of raising tower crane.
Accompanying drawing explanation
Fig. 1 is the structured flowchart of the tower crane security monitoring circuit that is provided with GPRS module of the present utility model.
Fig. 2 is the display circuit figure of the tower crane security monitoring circuit that is provided with GPRS module of the present utility model.
Fig. 3 is the voltage sampling circuit figure of the tower crane security monitoring circuit that is provided with GPRS module of the present utility model.
Fig. 4 is the current sampling circuit figure of the tower crane security monitoring circuit that is provided with GPRS module of the present utility model.
Fig. 5 is the audible alarm circuit diagram of the tower crane security monitoring circuit that is provided with GPRS module of the present utility model.
Fig. 6 is the LED illuminating circuit figure of the tower crane security monitoring circuit that is provided with GPRS module of the present utility model.
Fig. 7 is the GPRS radio communication circuit figure of the tower crane security monitoring circuit that is provided with GPRS module of the present utility model.
Fig. 8 is the relay drive circuit figure of the tower crane security monitoring circuit that is provided with GPRS module of the present utility model.
Below pass through the specific embodiment, and the utility model is described in further detail by reference to the accompanying drawings.
The specific embodiment
Referring to accompanying drawing 1～accompanying drawing 8, be provided with the tower crane security monitoring circuit of GPRS module, it comprises data acquisition unit, sample circuit, governor circuit, display circuit, warning circuit, relay drive circuit and GPRS radio communication circuit; Described governor circuit comprises microprocessor; Described data acquisition unit is connected with described sample circuit, and described sample circuit is connected with described governor circuit, and described display circuit, warning circuit and wireless communication module are all connected with described governor circuit; Described data acquisition unit comprises LOAD CELLS, rotary sensor, luffing sensor, height sensor, air velocity transducer, voltage sensor, current sensor and temperature sensor.
As Fig. 1, the data acquisition unit being made up of LOAD CELLS, rotary sensor, luffing sensor, height sensor, air velocity transducer, voltage sensor, current sensor and temperature sensor etc. gathers the operational factor of the various device of tower crane, and after being processed by sample circuit, operational factor gives governor circuit, obtain every operational factor and process by governor circuit, then in the demonstration screen display of display circuit; Once operational factor exceedes the scope of preset value and needs to report to the police, and reports to the police by warning circuit; Governor circuit is also transferred to operational factor by GPRS radio communication circuit the upper computer of the monitoring and control centre of upper class, and the upper computer of the monitoring and control centre of upper class can be uploaded the operational factor of being correlated with step by step, thereby realize Multistage Control, thereby the supervisory circuit platform by far-end is realized the control and management to a tower group of planes, set up the tower machine group control system that is not subject to region and distance limit, realize unified monitoring and management to the tower group of planes in work area on a large scale, improve job security and the reliability of tower machine.
Governor circuit is microprocessor STM32 and peripheral circuit thereof.STM32 series is based on aiming at the custom-designed ARM Cortex-M3 of the Embedded Application kernel that requires High Performance, low cost, low-power consumption.Be divided into two different series: STM32F103 " enhancement mode " series and STM32F101 " basical traditional model " series by performance.Enhancement mode series clock frequency reaches 72MHz, is the highest product of like product performance; Basical traditional model clock frequency is 36MHz, obtains the performance that significantly promotes than 16 products with the price of 16 products, is the optimal selection of 16 product users.All built-in 32K is to the flash memory of 128K for two series, and different is the combination of maximum capacity and the Peripheral Interface of SRAM.When clock frequency 72MHz, from flash memory run time version, STM32 power consumption 36mA, is product least in power-consuming on 32 markets, is equivalent to 0.5mA/MHz.
Described display circuit comprises LCD display.
Display section selects 7 cun of TFTLCD as telltale, and drive scheme adopts FPGA+SDRAM, and the core take FPGA as system realizes the driving algorithm of LCD from hardware.By with the communicating by letter of central process unit, send instruction and displaying contents and complete the procedure for displaying of Liquid Crystal Display to this driver module by central process unit.
Figure 2 shows that the interface circuit of LCD and central process unit.LCD_D0 to the LCD_D15 pin of driver module is as data line.LCD_RE and LCD_WE are reading enable signal line and writing enable signal line, Low level effective of LCD.CE is the chip selection signal of controller, represents that this controller is chosen in the time that CE is dragged down.A0 is the address signal of controller, represents the selection of data-signal and control signal.RST pin is the reset signal of driver module.Be connected with the I/O mouth of 5 control lines and the treater electric power system of fluid,matching crystal display of above 16 data lines completes the Presentation Function of native system.
Described sample circuit comprises voltage sampling circuit and current sampling circuit;
As shown in Figure 3, described voltage sampling circuit comprises resistance R 1～R3, capacitor C 1～C3, op amp U3, diode D1 and diode D2; Described voltage sensor is connected with a terminal of described op amp U3, after being connected in series with R3, described resistance R 2, R1 be connected with another terminal of described op amp U3 by resistance R 2, described resistance R 1 is rheochord, described resistance R 3 ground connection; Common point after described diode D1 is connected in series with diode D2 is connected with described resistance R 1, and the common point after described diode D1 is connected in series with diode D2 is also connected with governor circuit; Described capacitor C 1～C3 is all connected with described op amp U3;
As shown in Figure 4, described current sampling circuit comprises resistance R 4～R8, capacitor C 4～C6, op amp U4, diode D3 and diode D4; Described current sensor is connected with a terminal of described op amp U4, after being connected in series with R6, described resistance R 4, R5 be connected with another terminal of described op amp U4 by resistance R 4, described resistance R 5 is rheochord, described resistance R 6 ground connection; Common point after described diode D3 is connected in series with diode D4 is connected with described resistance R 5, and the common point after described diode D3 is connected in series with diode D4 is also connected with governor circuit; Described capacitor C 4～C6 is all connected with described op amp U4.
As shown in Figure 3, the voltage signal of voltage sensor output is through by op amp U3(OP27) emitter follower that forms inputs to governor circuit, the A/D converting unit that the voltage signal that voltage sampling circuit obtains by impedance transformation is input to governor circuit after electric resistance partial pressure, realizes the collection of voltage sensor signals.Described capacitor C 1～C3 is connected on one of them pin of described op amp U3.
As shown in Figure 4, first 4～20mA current signal of current sensor output is converted to voltage signal, pass through again by op amp U4(OP27) form emitter follower realize impedance transformation, the voltage signal obtaining is input to A/D converting unit after electric resistance partial pressure, realizes the collection of current sensor signal.Described capacitor C 4～C6 is connected on one of them pin of described op amp U4.After being connected in series with R8, described resistance R 7 is connected on the pin that described op amp U4 is connected with current sensor.
Described warning circuit comprises audible alarm circuit and LED illuminating circuit;
As shown in Figure 5, described audible alarm circuit comprises resistance R 9～R11, aerotron Q1 and buzzer phone U5; The base stage of described aerotron Q1 is connected with described governor circuit by described resistance R 9, and the two ends of described resistance R 10 are connected in the base stage and emitter of described aerotron Q1; The collecting electrode of described aerotron Q1 is connected with a terminal of described buzzer phone U5, and another terminal of described buzzer phone U5 connects power supply VCC by resistance R 11;
As shown in Figure 6, described LED illuminating circuit comprises resistance R 12～R13, aerotron Q2 and LED 1; The base stage of described aerotron Q2 is connected with described governor circuit by described resistance R 13, the grounded emitter of described aerotron Q2, and the collecting electrode of described aerotron Q2 is connected power supply VCC by LED 1 with resistance R 12 successively.
As shown in Figure 5, the buzzer phone control signal that governor circuit sends is inputted the base stage of Q1, controls the base stage of aerotron Q1 by resistance R 11, Q1 conducting in the time that buzzer phone control signal is high level, and buzzer phone BUZZER has electric current by starting warning work.R11 is current-limiting resistance, and the electric current of the Q1 that prevents from flowing through exceedes the rated current of buzzer phone.R10 is bleeder resistor, and in the time of external electromagnetic waves interfered circuit, R10 directly introduces DGND by the electric current of interfering signal and prevents buzzer phone false triggering.
In Fig. 6, the base stage of the LED control signal input Q2 that governor circuit sends, by the base stage of base resistance R13 control aerotron Q2, in the time that LED control signal is high level, aerotron On current flows through LED lamp, LED lamp is shinny, when control signal when being low level LED lamp extinguish.R12 is current-limiting resistance, and the electric current of the Q2 that prevents from flowing through exceedes the rated current of LED1.
Described GPRS radio communication circuit comprises GSM/GPRS chip U6, SIM chip U7, resistance R 15～R27, capacitor C 7～C9, aerotron Q3～Q4 and LED _ SIM.
As shown in Figure 7, the start of SIM908 module is controlled by the PWRKEY pin being directly connected with main control chip I/O mouth, and in the time that PWRKEY pin is dragged down duration and is greater than 1s by level, module realizes starts shooting.Module is set up serial communication through the UART interface and the master control board that carry, and main control part thinks that by serial ports SIM908 module transmission AT instruction realizes network registry, Configuration of baud rate and the remote data transfer function of module.
Power on after start in SIM908 module, the NETLIGHT pin of module self can be exported the height conversion level of certain frequency, and now LED_SIM indicator lamp can be with the mode of operation of certain frequency flicker indication SIM908 module.
SIM908 is four frequency GSM/GPRS modules of a integrated GPS navigation technology.Compact module size is also incorporated into GPRS and GPS in SMT encapsulation, realizes the application of embedded GPS significantly saved development time and expense for client.
Described relay drive circuit comprises transistor output photoelectric coupler U8, resistance R 28～R32, darlington transistor array U9, diode D5, relay K 1 and the coupling end P5 being connected with described governor circuit; Described coupling end P5 is connected with described darlington transistor array U9 by transistor output photoelectric coupler U8, and described darlington transistor array U9 is connected with described relay K 1, drives described relay K 1 by described darlington transistor array U9.
For the further safety of raising system, if system is sent light, sound dangerous play is afterwards proceeded, system control relay cuts off motor power supply in the hole, forces motor out of service, to guarantee the safe operation of tower machine.Whole protection process is by the folding of microprocessor STM32 chip controls relay, and then the control of realization to electric machine operation state.As shown in Figure 8, the IO mouth of STM32 chip is not participated in the control of relay directly, but controls transistor output photoelectric coupler U8(TLP521), optocoupler drives darlington transistor array U9(ULN2003) and then the folding of control relay contact.
As optocoupler TLP521 in Fig. 8 circuit plays buffer action, relay and STM32 are kept apart, fundamentally get rid of the electromagnetic interference that relay on-off moment produces.ULN2003 is high pressure darlington transistor array, has the features such as current gain is large, operating range is large, carrying load ability is strong, and the inner open collector that adopts is exported, and can bear the voltage of 50V and the electric current of 600mA, can directly drive the relay of 24V.When to optocoupler TLP521 input high level control signal, the mouth of ULN2003 becomes low level, the energising of Fig. 8 repeat circuit, relay switch closure.During due to relay K 1 folding, its internal electromagnetic coil can produce larger electromagnetic wave and form stronger electromagnetic interference, and in Fig. 8 repeat circuit, a diode D5 in parallel is flywheel diode, further reduces the folding of relay to the interference of system.
The described tower crane security monitoring circuit that is provided with GPRS module also comprises USB interface.
By USB interface, governor circuit can connect USB device, will make related data of the present utility model to import and export, can and other equipment between swap data easily.
The described tower crane security monitoring circuit that is provided with GPRS module also comprises input block, and described input block is keyboard or action button.
Described temperature sensor is digital temperature sensor DS18B20.
Adopt digital temperature sensor DS18B20, sensors with auxiliary electrode were is digital transducer, and only needs a data line to carry out data transmission, be easy to be connected with micro controller system, can remove A/D module, reduce hardware cost, simplify circuit system, measure temperature accuracy high.
Use GPRS wireless communication technology, the working data that tower machine monitoring circuit terminal is collected is transferred to the upper computer software of remote monitor and control end by GPRS network, realize large-scale tower machine monitoring, can set up the tower machine group control system that is not subject to region and distance limit, realize the control and management to a tower group of planes by the supervisory circuit platform of far-end simultaneously.
Use GPRS in internet seamless link technology, the working data that tower machine monitoring terminal is collected is uploaded to far-end upper computer software by GPRS network, transfer data in server database by upper computer, the working data of tower machine can be read in website from data bank, end user can be by the working parameter of query site and management tower machine, thereby realizes Distant supervision and control.
The mode that the utility model adopts GPRS networking, by the website that uploads onto the server of the working parameter in tower crane safety monitoring circuit, belongs to security monitoring field.Be applied to data processing and the data management of tower machine real-time security monitoring circuit.
Adopt GPRS and internet seamless link technology, set up and communicate by letter with far-end PC, realize the transmission over radio of tower machine monitoring circuit.Have easy to connectly, communication format is simple, and traffic rate is high, transmits the advantages such as fast, can set up the tower machine monitoring management platform based on nationwide, is convenient to monitoring and data management.
Adopt GPRS and internet seamless link technology, use built-in ICP/IP protocol to be connected with outer net static IP with the SIM908 chip of the Lyceum company with standard AT command interface, and adopt GPRS mobile data communication business, build the data communication with far-end PC upper computer.
SIM908 chip and central processing unit are passed through serial communication, SIM908 chip is connected with SIM simultaneously, GPRS mobile data communication service is provided, GPRS and server connect and follow Transmission Control Protocol (agreement that TCP host-host protocol need to connect one to one has higher reliability and safety).
The supervision and management center of far-end arranges upper computer, after tower machine monitoring circuit and upper computer are set up and communicate by letter, receives the data of GPRS module transmission, upper computer can be automatically by data upload to website, realize reception and the processing of long range data.
As shown in Figure 1, the utility model mainly uses tower machine monitoring terminal and remote monitoring and administration platform composition, tower machine monitoring terminal is positioned at tower machine operator's compartment, it is mainly the working parameter that gathers tower machine, information central processing unit will transfer to GPRS module after the data processing collecting, module connects internet network by GPRS, data are delivered to the upper computer of remote monitor and control end, upper computer by data conversion storage to data bank, be uploaded to website by data bank again, user can clearly check current and tower machine working parameter Historic preservation.
Fig. 7 represents the circuit connection diagram of the SIM908 chip of the Lyceum company with Transmission Control Protocol, this chip power power supply is DC4.2V, chip is communicated by letter with CPU by serial ports simultaneously, speed is very high, what periphery was indispensable has SIM, and GPRS mobile data communication business can be provided, and SIM908 chip only needs several seconds time from being initialised to successfully connection server, conveniently connect, thereby realize the transmission tower machine working data of fast and reliable.
Use GPRS wireless communication technology, the working data that tower machine monitoring circuit terminal is collected arrives the monitoring software of server end by Internet Transmission, realized large-scale tower machine monitoring.Use GPRS Radio Transmission Technology, can set up the tower machine group control system that is not subject to region and distance limit, by the supervisory circuit platform of far-end, realize the control and management to a tower group of planes.
Claims (9)
1. the tower crane security monitoring circuit that is provided with GPRS module, is characterized in that, comprises data acquisition unit, sample circuit, governor circuit, display circuit, warning circuit, relay drive circuit and GPRS radio communication circuit; Described governor circuit comprises microprocessor STM32; Described data acquisition unit is connected with described sample circuit, and described sample circuit is connected with described governor circuit, and described display circuit, warning circuit and wireless communication module are all connected with described governor circuit; Described data acquisition unit comprises LOAD CELLS, rotary sensor, luffing sensor, height sensor, air velocity transducer, voltage sensor, current sensor and temperature sensor.
2. the tower crane security monitoring circuit that is provided with GPRS module according to claim 1, is characterized in that, described display circuit comprises LCD display.
3. the tower crane security monitoring circuit that is provided with GPRS module according to claim 1, is characterized in that, described sample circuit comprises voltage sampling circuit and current sampling circuit;
Described voltage sampling circuit comprises resistance R 1～R3, capacitor C 1～C3, op amp U3, diode D1 and diode D2; Described voltage sensor is connected with a terminal of described op amp U3, after being connected in series with R3, described resistance R 2, R1 be connected with another terminal of described op amp U3 by resistance R 2, described resistance R 1 is rheochord, described resistance R 3 ground connection; Common point after described diode D1 is connected in series with diode D2 is connected with described resistance R 1, and the common point after described diode D1 is connected in series with diode D2 is also connected with governor circuit; Described capacitor C 1～C3 is all connected with described op amp U3;
Described current sampling circuit comprises resistance R 4～R8, capacitor C 4～C6, op amp U4, diode D3 and diode D4; Described current sensor is connected with a terminal of described op amp U4, after being connected in series with R6, described resistance R 4, R5 be connected with another terminal of described op amp U4 by resistance R 4, described resistance R 5 is rheochord, described resistance R 6 ground connection; Common point after described diode D3 is connected in series with diode D4 is connected with described resistance R 5, and the common point after described diode D3 is connected in series with diode D4 is also connected with governor circuit; Described capacitor C 4～C6 is all connected with described op amp U4.
4. the tower crane security monitoring circuit that is provided with GPRS module according to claim 1, is characterized in that, described warning circuit comprises audible alarm circuit and LED illuminating circuit;
Described audible alarm circuit comprises resistance R 9～R11, aerotron Q1 and buzzer phone U5; The base stage of described aerotron Q1 is connected with described governor circuit by described resistance R 9, and the two ends of described resistance R 10 are connected in the base stage and emitter of described aerotron Q1; The collecting electrode of described aerotron Q1 is connected with a terminal of described buzzer phone U5, and another terminal of described buzzer phone U5 connects power supply VCC by resistance R 11;
Described LED illuminating circuit comprises resistance R 12～R13, aerotron Q2 and LED 1; The base stage of described aerotron Q2 is connected with described governor circuit by described resistance R 13, the grounded emitter of described aerotron Q2, and the collecting electrode of described aerotron Q2 is connected power supply VCC by LED 1 with resistance R 12 successively.
5. the tower crane security monitoring circuit that is provided with GPRS module according to claim 1, it is characterized in that, described GPRS radio communication circuit comprises GSM/GPRS chip U6, SIM chip U7, resistance R 15～R27, capacitor C 7～C9, aerotron Q3～Q4 and LED _ SIM.
6. the tower crane security monitoring circuit that is provided with GPRS module according to claim 1, it is characterized in that, described relay drive circuit comprises transistor output photoelectric coupler U8, resistance R 28～R32, darlington transistor array U9, diode D5, relay K 1 and the coupling end P5 being connected with described governor circuit; Described coupling end P5 is connected with described darlington transistor array U9 by transistor output photoelectric coupler U8, and described darlington transistor array U9 is connected with described relay K 1, drives described relay K 1 by described darlington transistor array U9.
7. the tower crane security monitoring circuit that is provided with GPRS module according to claim 1, is characterized in that, also comprises USB interface.
8. the tower crane security monitoring circuit that is provided with GPRS module according to claim 1, is characterized in that, also comprise input block, described input block is keyboard or action button.
9. the tower crane security monitoring circuit that is provided with GPRS module according to claim 1, is characterized in that, described temperature sensor is digital temperature sensor DS18B20.
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| CN201320686705.4U CN203682948U (en) | 2013-11-01 | 2013-11-01 | Tower crane security monitoring circuit provided with GPRS (general packet radio service) module |
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| CN201320686705.4U CN203682948U (en) | 2013-11-01 | 2013-11-01 | Tower crane security monitoring circuit provided with GPRS (general packet radio service) module |
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Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104079666A (en) * | 2014-07-18 | 2014-10-01 | 佛山市顺德区万博电子科技有限公司 | Crane and crane monitoring method, platform and system |
| CN105645211A (en) * | 2016-04-13 | 2016-06-08 | 尼森科技（湖北）有限公司 | Initiative elevator self-inspection device and initiative elevator self-inspection system |
| CN107601284A (en) * | 2017-10-19 | 2018-01-19 | 江苏中建达丰机械工程有限公司 | Rotation control unit of tower crane |
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2013
- 2013-11-01 CN CN201320686705.4U patent/CN203682948U/en not_active Expired - Fee Related
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104079666A (en) * | 2014-07-18 | 2014-10-01 | 佛山市顺德区万博电子科技有限公司 | Crane and crane monitoring method, platform and system |
| CN105645211A (en) * | 2016-04-13 | 2016-06-08 | 尼森科技（湖北）有限公司 | Initiative elevator self-inspection device and initiative elevator self-inspection system |
| CN107601284A (en) * | 2017-10-19 | 2018-01-19 | 江苏中建达丰机械工程有限公司 | Rotation control unit of tower crane |
| CN107601284B (en) * | 2017-10-19 | 2024-05-14 | 江苏众建达丰机械工程有限公司 | Rotary control unit of tower crane |
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