CN105513299A - Intellectualized hanging basket information acquisition equipment - Google Patents
Intellectualized hanging basket information acquisition equipment Download PDFInfo
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- CN105513299A CN105513299A CN201610010982.1A CN201610010982A CN105513299A CN 105513299 A CN105513299 A CN 105513299A CN 201610010982 A CN201610010982 A CN 201610010982A CN 105513299 A CN105513299 A CN 105513299A
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- 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
- G08B21/18—Status alarms
- G08B21/24—Reminder alarms, e.g. anti-loss alarms
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B66—HOISTING; LIFTING; HAULING
- B66F—HOISTING, LIFTING, HAULING OR PUSHING, NOT OTHERWISE PROVIDED FOR, e.g. DEVICES WHICH APPLY A LIFTING OR PUSHING FORCE DIRECTLY TO THE SURFACE OF A LOAD
- B66F11/00—Lifting devices specially adapted for particular uses not otherwise provided for
- B66F11/04—Lifting devices specially adapted for particular uses not otherwise provided for for movable platforms or cabins, e.g. on vehicles, permitting workmen to place themselves in any desired position for carrying out required operations
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- Structural Engineering (AREA)
- Life Sciences & Earth Sciences (AREA)
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Abstract
The invention relates to a piece of intellectualized hanging basket information acquisition equipment. The equipment is composed of a power conversion unit, an STM32F103 processor module, a sensor module, a GPS (Global Positioning System) positioning module, a GSM (Global System for Mobile Communications) communication module, a buzzer alarm module and a clock circuit, wherein the sensor module comprises an air pressure sensor, an acceleration sensor and a gravity sensor. The air pressure sensor is used for acquiring a relative height of a hanging basket through an algorithm; the acceleration sensor is used for performing monitoring and pre-warning on the hanging basket by means of acquiring vibration information and an inclined angle of the hanging basket; when the vibration is frequent and severe, the hanging basket alarms through a buzzer, and an alarming lamp glitters; when the inclined angle is overlarge, the alarming operation can be also also be performed; the gravity sensor is used for acquiring operation state information of the hanging basket, generating a hanging basket operation state analog signal and determining whether the hanging basket is overloaded or not. The intellectualized hanging basket information acquisition equipment has the advantages that a plurality of sensor signal acquisition modules are adopted and commonly cooperate for acquiring data under the operation state of the hanging basket in many ways, so that the safety for monitoring the hanging basket is guaranteed.
Description
Technical field
The invention belongs to hanging basket intellectualized technology field, be specifically related to a kind of based on Wireless Data Transmission, the information collecting device of Information Monitoring monitoring hanging basket equipment situation.
Background technology
Along with expanding economy, building trade is at high speed development, and hanging basket becomes a kind of indispensable and widely used equipment, and hanging basket is mainly used in high-altitude constructions work.Worldwide current, skyscraper occurs it being the inexorable trend of economic development in a large number, hanging basket for work high above the ground has good development prospect and wide market, but hanging basket belongs to the high-risk work post of building trade, security and reliability are relatively poor, and trade management is chaotic, corresponding industry standard is also more outmoded; The annual accident occurred on hanging basket reaches hundreds of and rises, and for this phenomenon, we are necessary security and the practicality of considering hanging basket; We adopt Internet of Things+concept, intellectuality is brought into above hanging basket industry, makes it safer, be more prone to find the potential problem of hanging basket.
Summary of the invention
The object of the present invention is to provide a kind of intelligentized hanging basket information collecting device, for gathering the relevant information on hanging basket, and information being processed, realizing the object of early warning and alarming.Make it safer, be more prone to supervision, be more prone to find in use potential problem.
For reaching described object, the intelligentized hanging basket information collecting device that the present invention relates to, be made up of power conversion unit, STM32F103 processor module, sensor assembly, GPS locating module, gsm communication module, buzzer warning module and clock circuit, wherein:
AC power is converted to low-voltage dc power supply by power conversion unit, Power convert unit is connected with STM32F103 processor module, sensor assembly, GPS locating module, gsm communication module, buzzer warning module and clock circuit respectively, provides low-voltage dc power supply for passing STM32F103 processor module, sensor assembly, GPS locating module, gsm communication module, buzzer warning module and clock circuit;
Sensor assembly comprises baroceptor, acceleration transducer, gravity sensor.Baroceptor by algorithm for obtaining the relative height of hanging basket; Acceleration transducer gathers the vibration information of hanging basket and the inclination angle of hanging basket, and for monitoring and the early warning of hanging basket, when shaking frequently and acutely, by algorithm, hanging basket can pass through buzzer warning, and alarm lamp flicker, time inclination angle is excessive, can report to the police equally.The status information that gravity sensor runs for gathering hanging basket, generate hanging basket running status simulating signal, and by the A/D conversion chip of signal gathering unit hanging basket running status simulating signal changed and export the digital signal of hanging basket running state information, measure the load whether overload of hanging basket.
GPS locating module gathers geographic position and the elevation information of hanging basket, for locating the geographic position of each hanging basket, and the real time execution height of hanging basket; Be convenient to supervision and condition monitoring.
Gsm communication module is transmitted for the data of intelligent hanging basket information collecting device, by gsm communication module, the hanging basket service data collected is uploaded on Cloud Server, for data analysis and hanging basket status queries.
STM32F103 processor module is used for operation and the information processing of whole circuit; Sensing data process, GPS location, gsm communication etc.
Buzzer warning module is used for hanging basket and reports to the police.Clock circuit provides the RTC time accurately for module.
Wherein, described power conversion unit A1 piles rectification circuit A102, DC/DC chip A103,12V by AC36V alternating voltage A101, bridge and turns 3.8V circuit A104,12V and turn 3.3V circuit A105 and LED A106 and form.AC36V alternating voltage A101 converts 50V constant voltage DC to by bridge heap rectification circuit A102,12V electric current of voltage regulation is converted to again by DC/DC chip A103, wherein 12V turns 3.8V circuit A104 by 12V and converts 3.8V voltage to, and 12V turns 3.3V circuit A105 by 12V and converts 3.3V voltage to; Wherein 12V is that LED A106 and hummer modules A 5 are powered, and 3.8V is that gsm communication modules A 4 is powered, and 3.3V is STM32F103 processor module A6, sensor assembly A2, GPS locating module A3, clock circuit A7 power.
Wherein, described STM32F103 processor module comprises processor chips U1, resistance R4, R5, R6, R7, R8, R9, R15, R16, R18, R19, R38, R37, R39, R32, R34, R26, electric capacity C6, C7, C12, C13, crystal oscillator 32K-XTAL, crystal oscillator 8M-XTAL.Processor chips U1 the 12nd, 13,18,30,31 pin connect 3.3V voltage; 15th, 17,44 pin ground connection; 3rd pin of processor chips U1 connects crystal oscillator 32K-XTAL and electric capacity C6 one end, electric capacity C6 other end ground connection; 4th pin of processor chips U1 meets the crystal oscillator 32K-XTAL other end and electric capacity C7, electric capacity C7 other end ground connection; 5th pin of processor chips U1 connects 1 end of crystal oscillator 8M-XTAL, resistance R16 and electric capacity C13 one end, 2 ends of another termination capacitor C12 of resistance R16 and crystal oscillator 8M-XTAL, electric capacity C12 other end ground connection; 6th pin of processor chips U1 connects 2 ends of crystal oscillator 8M-XTAL.The 12nd pin connecting resistance R26 one end of processor chips U1, the transmission serial ports of another termination GPS locating module of resistance R26; The 13rd pin connecting resistance R30 one end of processor chips U1, the reception serial ports of another termination GPS locating module of resistance R30.Processor chips U1 the 14th, 16 pins connect respectively gravity sensor chip U8 the 15th, 16 pins.Processor chips U1 the 18th, 19 pins connect hummer module.Processor chips U1 the 20th, 25,30,31 pins connect respectively gsm communication module the 31st, 38,29,30 pins.Processor chips U1 the 29th, 41 pins connect respectively acceleration sensor chip U12 the 9th, 11 pins.Processor chips U1 the 42nd, 43,46 pins connect respectively air pressure sensor chip U6 the 2nd, 4,7 pins.45th pin of processor chips U1 connects the 3.3V voltage of air pressure sensor chip U6.
Wherein, described sensor assembly A2 resets button A203, CS1231AD conversion chip A204 by baroceptor A201, acceleration transducer A202, KEY angle, gravity sensor A205 forms.
Baroceptor A201 comprises processor chips U6, resistance R81, R84, R85, R76, R77, R78, R79, electric capacity C40, C41.Electric capacity C41 mono-termination processor chips U6 the 1st, 10 pins and VDD33, another termination capacitor C40, C40 and C41 other end ground connection; 2nd pin of processor chips U6 connects the 42nd pin of place STM32F103 processor chips U1 and the 4th pin of acceleration transducer processor chips U12, and connects R76 one end, another termination VDD33 power supply of R76; The 3rd pin connecting resistance R84 one end of processor chips U6, R84 other end ground connection; 4th pin of processor chips U6 connects the 43rd pin of STM32F103 processor chips U1, the 6th pin of acceleration transducer processor chips U12 and resistance R77 one end, another termination VDD33 power supply of resistance R77 respectively; The 5th pin connecting resistance R85 one end of processor chips U6, R85 other end ground connection; 6th pin of processor chips U6 connects VDD33 power supply; 7th pin of processor chips U6 connects the 46th pin and resistance R78 one end of STM32F103 processor chips U1, another termination VDD33 power supply of R78 respectively; Resistance R79 mono-termination VDD33 power supply, the 45th pin of another termination STM32F103 processor chips U1.
Acceleration transducer A202 comprises processor chips U12, resistance R102, R87, electric capacity C87, C88.1st pin of resistance R102 one end connection handling device chip U12, the 14th pin and the VDD33 of other end connection handling device chip U12; Electric capacity C87 one end connects VDD33 power supply and electric capacity C88 one end; Processor chips U12 the 10th, 12 pins are connected to C87 and the C88 other end and ground connection; Processor chips U12 the 4th, 6 pins connect respectively air pressure sensor chip U6 the 2nd, 4 pins and STM32F103 processor chips U1 the 42nd, 43 pins; The 5th pin ground connection of processor chips U12; Processor chips U12 the 7th, 8 pins connect R87 one end, another termination VDD33 of R87; Processor chips U12 the 9th, 11 pins connect respectively STM32F103 processor chips U1 the 29th, 41 pins.
KEY angle resets button A203 and comprises resistance R105, K switch 3, TVS pipe TVS11.Resistance R105 mono-termination VDD33 power supply, the other end connects TVS pipe TS11 one end and K switch 3 one end respectively; The other end ground connection of K switch 3 and TVS pipe TS11; K switch 3, TSV pipe TVS11 and resistance R105 connect the 27th pin of STM32F103 processor chips U1 jointly.
Gravity sensor A205 comprises resistance R120, R121, R122, R123, R86, R109, R113, R117, electric capacity C106, C108, C107, C109, C104, C105, connector J12, J13.VDD33 connects the 1st pin of AD conversion chip U8; AD conversion chip U8 the 2nd, 3,9,11 ground connection; AVDD33 connect AD conversion chip U8 the 4th, 10,12 pins, and one end of connecting resistance R113, electric capacity C104 and C105; 14th pin of another termination of resistance R113 AD conversion chip U8; Another termination AD conversion chip U8 of electric capacity C104 and C105 the 9th, 11 pins and ground connection; Electric capacity C107 one end connects the 5th pin of AD conversion chip U8, one end of electric capacity C106 respectively, and the electric capacity C107 other end connects the 6th pin of AD conversion chip U8, one end of electric capacity C108 respectively; Electric capacity C106 other end ground connection; Another termination capacitor C106 one end of electric capacity C108 ground connection; Resistance R86 and resistance R109 one end connect respectively AD conversion chip U8 the 16th, 15 pins, the other end connect respectively STM32F103 processor chips U1 the 16th, 14 pins; 13rd pin of resistance R117 mono-termination AD conversion chip U8, other end ground connection; The pin 1 of connector J12 meets VDDSEN, and pin 2 connects R120 one end, and pin 3 connects R121 one end, pin 4 ground connection; 7th pin of resistance R120 difference connecting resistance R122, electric capacity C109 and AD conversion chip U8; Resistance R121 connects the 8th pin of the electric capacity C109 other end and AD conversion chip U8 respectively; Electric capacity C109 connect respectively AD conversion chip U8 the 7th, 8 pins, resistance R120, resistance R121, resistance R122, resistance R123 one end; The pin 1 of connector J13 meets VDDSEN, and pin 2 connects R122 one end, and pin 3 connects R123 one end, pin 4 ground connection; 7th pin of the resistance R122 other end respectively connecting resistance R120 one end, electric capacity C109 one end and AD conversion chip U8; 8th pin of the resistance R123 other end respectively connecting resistance R121 one end, the electric capacity C109 other end and AD conversion chip U8.
Wherein, described GPS locating module A3 comprises GPS chip M2, resistance R65, R66, R67, R103, R72, R73, R69, R70, R71, R74, R75, electric capacity C100, C38, C39, C36, C33, C34, C35, C37, inductance L 7, L3, L2, LED 2, triode Q8, TVS pipe TVS10, antenna J5, battery BT2, courage electric capacity CT2.GPS chip M2 the 10th, 12,25,26,13,24 ground connection; The 1 terminating resistor R66 of triode Q8,2 end ground connection, the negative electrode K of 3 termination LEDs 2; 1st pin of another termination GPS chip of resistance R66 M2; The anode A of resistance R65 one end sending and receiving optical diode LED2, the other end connects one end of VDD33 and electric capacity C100 respectively; Electric capacity C100 other end ground connection; Inductance L 7 two ends connect respectively GPS chip M2 the 8th, 9 pins; 11st pin of inductance L 3 one termination capacitor C39 and GPS chip M2, the other end connects electric capacity C38,1 end of antenna J5, one end of TVS pipe TVS10 respectively; Electric capacity C38 and electric capacity C39 other end ground connection respectively; The other end of TVS pipe TVS10 connects 2,3,4,5 ends of antenna J5,5 end ground connection respectively; Resistance R70 one end connects VDD33 and resistance R74 respectively, and the other end is one end of contact resistance R71 and the 15th pin of GPS chip M2 respectively; One end of resistance R71 connects the 15th pin and resistance R70 one end of GPS chip M2, one end of other end contact resistance R75 and ground connection; One end of the 14th pin difference contact resistance R74 and resistance R75 of GPS chip M2; The resistance R74 other end connects VDD33 and resistance R70 one end; Resistance R75 other end contact resistance R71 one end and ground connection; Resistance R72 and resistance R73 be connected respectively GPS chip M2 the 21st, 20 pins, one end of the other end respectively contact resistance R26, resistance R30, resistance R26 and the other end of resistance R30 be connected respectively STM32F103 processor chips U1 the 12nd, 13 pins; Resistance R69 mono-termination VDD33, other end connecting resistance R72 and resistance R26; 22nd pin of resistance R67 mono-termination capacitor C36 one end and GPS chip M2, the positive pole of other end difference connecting resistance R103 one end and battery BT2; Resistance R36 other end ground connection; Battery BT2 other end ground connection; Another termination of resistance R103 processor chips U1; Inductance L 2 one end connects the 23rd pin of electric capacity C33, electric capacity C34, GPS chip M2 respectively, and the other end connects electric capacity C35, electric capacity C37, the positive pole of courage electric capacity CT2, VDD33 power supply respectively; Electric capacity C33 other end ground connection; Electric capacity C34 other end ground connection; The other end common ground of electric capacity C35, electric capacity C37 and courage electric capacity CT2.
Wherein, described gsm communication module comprises GSM chip, antenna and LED composition.Be mainly used in communication and data transmission use, the hanging basket data obtained are transferred to Cloud Server.Whether LED instruction gsm communication module has exception.
Wherein, described buzzer warning module comprises light emitting diode LD1, hummer BZ2, triode Q1, resistance R39, R23, R27, R127, electric capacity C11, common anode pole Xiao Jite pipe D2.18th pin of resistance R39 mono-termination STM32F103 processor chips U1, the negative electrode of the other end sending and receiving optical diode LD1 of resistance R39; One end of one terminating resistor R39 of light emitting diode, another termination power vd D33; 19th pin of resistance R27 mono-termination STM32F103 processor chips U1,1 end of resistance R27 other end difference connecting resistance R29, triode Q1; One end of the 3 terminating resistor R23 of triode Q1, the other end of the 2 terminating resistor R29 of triode Q1 and common ground; Contact resistance R23 one end, 2 ends of hummer BZ2, one end of resistance R127 respectively, one end of common anode pole Schottky tube D2, the other end of common anode pole Schottky tube D2 connects 1 end of hummer BZ2, the other end of resistance R127, one end of electric capacity C11 and power supply+12V respectively; One end of the 1 terminating resistor R127 of hummer BZ2, one end of the 2 terminating resistor R23 of hummer BZ2; Electric capacity C11 other end ground connection.
Wherein, so clock circuit is made up of two crystal oscillating circuits 32K-XTAL, 8M-XTAL and button cell.The RTC time is accurately provided to equipment.
Compared with background technology, present invention employs multiple collecting sensor signal module, collaborate many-side gathers the data under hanging basket running status, and realize the security monitoring hanging basket, give warning in advance dangerous situation.By gsm communication module the data upload gathered on Cloud Server, Cloud Server processes and analyzes data for judging the operation conditions of hanging basket, and can timely by related personnel that information pushing reminds hanging basket to use.Obtain the current geographic position of hanging basket and height by GPS location, be convenient to hanging basket management.The height of hanging basket is obtained further by baroceptor, the height obtained is the relative height on relative ground is not sea level elevation, the relative height obtained is uploaded to Cloud Server and mobile phone app software can allow hanging basket related personnel know the height seeing hanging basket work at present, whether exceeds safe altitude.Acceleration transducer is for obtaining vibration information and the hanging basket inclination angle of hanging basket, and as frequent and violent in shaken, equipment passes through buzzer warning; As hanging basket inclination angle is greater than positive and negative 7 °, then equipment passes through buzzer warning.Gravity sensor for obtaining the current real time load situation of hanging basket, data upload cloud service platform, if load overload just passes through buzzer warning.Above-mentioned vibrations are reported to the police, and when report to the police in inclination angle and load is reported to the police, alarm lamp flash for prompting, is convenient to remind hanging basket operating personnel, hanging basket equipment can be used under safer environment, give warning in advance and effectively can prevent the generation of hanging basket accident.
Accompanying drawing explanation
Fig. 1 is integrated circuit structural representation of the present invention;
Fig. 2 is the STM32F103 processor module schematic diagram in Fig. 1;
Fig. 3 is the gas pressure sensor module schematic diagram in Fig. 1;
Fig. 4 is the acceleration transducer/inclination angle module diagram in Fig. 1;
Fig. 5 is that the KEY angle in Fig. 1 resets schematic diagram;
Fig. 6 is the gravity sensor module diagram in Fig. 1;
Fig. 7 is the GPS locating module schematic diagram in Fig. 1.
Embodiment
Below in conjunction with accompanying drawing, the invention will be further described.
The intelligentized hanging basket information collecting device of one in the present embodiment comprises power conversion unit, STM32F103 processor module, sensor assembly, GPS locating module, gsm communication module, buzzer warning module and clock circuit.A kind of intelligentized hanging basket information collecting device uses building site 36V power supply, power conversion unit is utilized to realize Pressure-stabilizing pressure reducing supply native system, STM32F103 processor module and sensor assembly (comprising baroceptor, acceleration transducer and gravity sensor) and hummer are undertaken alternately by GPIO interface, obtain height, vibrations, load numerical value, then utilize hummer to report to the police.STM32F103 processor module and gsm communication module and GPS locating module are undertaken alternately by UART interface, and for data communication and transmission, gathering geographic position and elevation information, LED shows the working condition of gsm module and GPS module.Clock circuit provides the stable RTC time for STM32F103 processor module.
As shown in Figure 1, described power conversion unit comprises AC36V alternating voltage, rectification circuit piled by bridge, DC/DC chip, 12V turn 3.8V circuit, 12V turns 3.3V circuit and LED.AC36V alternating voltage converts 50V constant voltage DC to by bridge heap rectification circuit, then converts 12V electric current of voltage regulation to by DC/DC chip, and 12V is LED and hummer module for power supply.Wherein 12V stabilized voltage supply converts 3.8V power supply and 3.3V power supply to; Wherein, 3.8V is gsm communication module for power supply, and 3.3V is STM32F103 processor module, sensor assembly, GPS locating module, clock circuit are powered.
As shown in Figure 2, described STM32F103 processor module comprises processor chips U1, resistance R4, R5, R6, R7, R8, R9, R15, R16, R18, R19, R38, R37, R39, R32, R34, R26, electric capacity C6, C7, C12, C13, crystal oscillator 32K-XTAL, crystal oscillator 8M-XTAL.Processor chips U1 the 12nd, 13,18,30,31 pin connect 3.3V voltage; 15th, 17,44 pin ground connection; 3rd pin of processor chips U1 connects crystal oscillator 32K-XTAL one end, another termination capacitor C6, C6 other end ground connection; 4th pin of processor chips U1 meets the crystal oscillator 32K-XTAL other end and electric capacity C7, electric capacity C7 other end ground connection; 5th pin of processor chips U1 connects 1 end of crystal oscillator 8M-XTAL and 2 ends of resistance R16 and another termination C12 level 8M-XTAL of electric capacity C13, R16, C12 other end ground connection; 5th pin of processor chips U1 connects 2 ends of crystal oscillator 8M-XTAL.Processor chips U1 the 3rd, 4,5,6 pins connect is two crystal oscillator 8M-XTAL and 32M-XTAL, the use of these two crystal oscillators is for processor chips U1 provides the RTC time accurately.12nd, 13 pins of processor chips U1 respectively map interlinkings 7 GPS chip M2 the 21st, 20 pins, wherein, 12 pins connect R26 one end, the transmission serial ports of another termination GPS chip of R26 M2; 13 pins connect R30 one end, the reception serial ports of another termination GPS chip of resistance R30 M2.14th, 16 pins of processor chips U1 respectively map interlinking 6 gravity sensor chip U8 the 15th, 16 pins.Processor chips U1 the 18th, 19 pins connect hummer module.Processor chips U1 the 20th, 25,30,31 pins connect respectively gsm communication module the 31st, 38,29,30 pins.Gsm communication module mainly provides communication and the data transmission of equipment, and data are transferred to cloud service platform.Processor chips U1 the 29th, 41 pins connect respectively acceleration sensor chip U12 the 9th, 11 pins.Processor chips U1 the 42nd, 43,46 pins connect respectively air pressure sensor chip U6 the 2nd, 4,7 pins.45th pin of processor chips U1 connects the 3.3V voltage of baroceptor.The Main Function of processor chips U1 is that the data provided for each sensor process.
As shown in Figure 2, buzzer warning module comprises light emitting diode LD1, hummer BZ2, triode Q1, resistance R39, R23, R27, R127, electric capacity C11, common anode pole Xiao Jite pipe D2.18th pin of resistance R39 mono-termination STM32F103 processor chips U1, the negative electrode of the other end sending and receiving optical diode LD1 of resistance R39; One end of one terminating resistor R39 of light emitting diode, another termination power vd D33; 19th pin of resistance R27 mono-termination STM32F103 processor chips U1,1 end of resistance R27 other end difference connecting resistance R29, triode Q1; One end of the 3 terminating resistor R23 of triode Q1, the other end of the 2 terminating resistor R29 of triode Q1 and common ground; Contact resistance R23 one end, 2 ends of hummer BZ2, one end of resistance R127 respectively, one end of common anode pole Schottky tube D2, the other end of common anode pole Schottky tube D2 connects 1 end of hummer BZ2, the other end of resistance R127, one end of electric capacity C11 and power supply+12V respectively; One end of the 1 terminating resistor R127 of hummer BZ2, one end of the 2 terminating resistor R23 of hummer BZ2; Electric capacity C11 other end ground connection.Hummer is used for equipment alarm and uses.Report to the police in vibrations warning, load warning and inclination angle, no matter any type has been reported to the police, and hummer is just reported to the police.
As shown in Figure 2, clock circuit is made up of two crystal oscillating circuits 32K-XTAL, 8M-XTAL and button cell.The RTC time is accurately provided to equipment.
As shown in Figure 3, baroceptor comprises processor chips U6, resistance R81, R84, R85, R76, R77, R78, R79, electric capacity C40, C41.Electric capacity C41 mono-termination processor chips U6 the 1st, 10 pins, power vd D33 and electric capacity C40 one end; C40 and C41 other end ground connection; 4th pin of the 42nd pin of the STM32F103 processor chips U1 of the 2nd pin map interlinking 2 of processor chips U6 and the acceleration transducer processor chips U12 of Fig. 4, and connect R76 one end; Another termination VDD33 power supply of R76; The 3rd pin connecting resistance R84 one end of processor chips U6, R84 other end ground connection; The 4th pin the 43rd pin of STM32F103 processor chips U1 of map interlinking 2, the 6th pin of the acceleration transducer processor chips U12 of Fig. 4 and resistance R77 one end respectively of processor chips U6, another termination VDD33 power supply of resistance R77; The 5th pin connecting resistance R85 one end of processor chips U6, R85 other end ground connection; 6th pin of processor chips U6 connects VDD33 power supply; 46th pin of the STM32F103 processor chips U1 of the 7th pin difference map interlinking 2 of processor chips U6 and resistance R78 one end, another termination VDD33 power supply of R78; Resistance R79 mono-termination VDD33 power supply, the 45th pin of the STM32F103 processor chips U1 of other end map interlinking 2.Baroceptor connects STM32F103 processor chips U1 by I2C interface, after the data that baroceptor gathers pass through STM32F103 processor chips U1 process, by gsm communication module transfer to cloud service platform.
As shown in Figure 4, acceleration transducer comprises processor chips U12, resistance R102, R87, electric capacity C87, C88.1st pin of resistance R102 one end connection handling device chip U12, the 14th pin and the VDD33 of other end connection handling device chip U12; Electric capacity C87 one end connects VDD33 power supply and electric capacity C88 one end; Processor chips U12 the 10th, 12 pins are connected to C87 and the C88 other end and ground connection; 4th, 6 pins of processor chips U12 respectively connection layout 3 the 2nd of air pressure sensor chip U6 the, the STM32F103 processor chips U1 of 4 pins and Fig. 2 the 42nd, 43 pins; The 5th pin ground connection of processor chips U12; Processor chips U12 the 7th, 8 pins connect R87 one end, another termination VDD33 of R87; 9th, 11 pins of processor chips U12 respectively map interlinkings 2 STM32F103 processor chips U1 the 29th, 41 pins; Acceleration transducer has two large functions; One, gather hanging basket vibration signal; Two, detect hanging basket inclination angle; If hanging basket has vibrations frequently at operational process and shakes violent, the time is longer, and so hanging basket can send vibrations warning, buzzer warning, LED is glimmered, and alert data uploads to cloud service platform in real time by process, indicates that type of alarm is vibrations in detail; The larger inclination if hanging basket is in operation, inclination angle is greater than positive and negative 7 ° (precision 0.1 °), so equipment can send warning, buzzer warning, LED is glimmered, and alert data uploads to cloud service platform in real time by process, indicate that type of alarm is report to the police in inclination angle in detail, and the degree of tilt of hanging basket when recording current alerts.
As shown in Figure 5, KEY angle dump block comprises resistance R105, K switch 3, TVS pipe TVS11.Resistance R105 mono-termination VDD33 power supply, the other end connects TVS pipe TS11 one end and K switch 3 one end respectively; The other end ground connection of K switch 3 and TVS pipe TS11; 27th pin of the STM32F103 processor chips U1 of the common map interlinking 2 of K switch 3, TSV pipe TVS11 and resistance R105.Be mainly used in calibration and the zero setting of hanging basket angle, make hanging basket operationally be in horizontality, guarantee the accuracy of data acquisition, avoid false alarm.
As shown in Figure 6, gravity sensor comprises resistance R120, R121, R122, R123, R86, R109, R113, R117, electric capacity C106, C108, C107, C109, C104, C105, connector J12, J13.VDD33 connects the 1st pin of AD conversion chip U8; AD conversion chip U8 the 2nd, 3,9,11 ground connection; AVDD33 connect AD conversion chip U8 the 4th, 10,12 pins, and one end of connecting resistance R113, electric capacity C104 and C105; 14th pin of another termination of resistance R113 AD conversion chip U8; Another termination AD conversion chip U8 of electric capacity C104 and C105 the 9th, 11 pins and ground connection; Electric capacity C107 one end connects the 5th pin of AD conversion chip U8, one end of electric capacity C106 respectively, and the electric capacity C107 other end connects the 6th pin of AD conversion chip U8, one end of electric capacity C108 respectively; Electric capacity C106 other end ground connection; Another termination capacitor C106 one end of electric capacity C108 ground connection; Resistance R86 and resistance R109 one end connect respectively AD conversion chip U8 the 16th, 15 pins, the other end respectively map interlinking 2 STM32F103 processor chips U1 the 16th, 14 pins; AD conversion chip U8 converts digital data to the analog data processed, and by the 15th, 16 pins are transferred to the STM32F103 processor chips U1 of Fig. 2.13rd pin of resistance R117 mono-termination AD conversion chip U8, other end ground connection; The pin 1 of connector J12 meets VDDSEN, and pin 2 connects R120 one end, and pin 3 connects R121 one end, pin 4 ground connection; 7th pin of resistance R120 difference connecting resistance R122, electric capacity C109 and AD conversion chip U8; Resistance R121 connects the 8th pin of the electric capacity C109 other end and AD conversion chip U8 respectively; Electric capacity C109 connect respectively AD conversion chip U8 the 7th, 8 pins, resistance R120, resistance R121, resistance R122, resistance R123 one end; The pin 1 of connector J13 meets VDDSEN, and pin 2 connects R122 one end, and pin 3 connects R123 one end, pin 4 ground connection; 7th pin of the resistance R122 other end respectively connecting resistance R120 one end, electric capacity C109 one end and AD conversion chip U8; 8th pin of the resistance R123 other end respectively connecting resistance R121 one end, the electric capacity C109 other end and AD conversion chip U8.As seen from Figure 6, the equipment of gravity sensor is outer being connected on connector J12, J13.Two pipeline equipments of gravity sensor are connected on J12 and J13 respectively, the analog data gathering two-way inputs to AD conversion chip U8 by AD conversion chip U8 the 7th, 8 pins, the analog data that AD conversion chip U8 process gathers is converted to digital data, sends to the STM32F103 processor chips U1 of Fig. 2.For unequally loaded hanging basket model, only need write corresponding load numerical value in embedded program, equipment can by the numerical value contrast in the load numerical value of acquisition and embedded program, if hanging basket load exceedes the numerical value of design, equipment will be reported to the police, and the concrete numerical value of load when record is reported to the police.The numerical precision that gravity sensor is obtained by digital-to-analog conversion, within 5KG, has very high accuracy.
As shown in Figure 7, GPS locating module comprises GPS chip M2, resistance R65, R66, R67, R103, R72, R73, R69, R70, R71, R74, R75, electric capacity C100, C38, C39, C36, C33, C34, C35, C37, inductance L 7, L3, L2, LED 2, triode Q8, TVS pipe TVS10, antenna J5, battery BT2, courage electric capacity CT2.GPS chip M2 the 10th, 12,25,26,13,24 ground connection; The 1 terminating resistor R66 of triode Q8,2 end ground connection, the negative electrode K of 3 termination LEDs 2; 1st pin of another termination GPS chip of resistance R66 M2; The anode A of resistance R65 one end sending and receiving optical diode LED2, the other end connects one end of VDD33 and electric capacity C100 respectively; Electric capacity C100 other end ground connection; LED 2, triode Q8, resistance R65 and electric capacity C100 constitute status lamp and the alarm lamp of GPS module jointly.Inductance L 7 two ends connect respectively GPS chip M2 the 8th, 9 pins; 11st pin of inductance L 3 one termination capacitor C39 and GPS chip M2, the other end connects electric capacity C38,1 end of antenna J5, one end of TVS pipe TVS10 respectively; Electric capacity C38 and electric capacity C39 other end ground connection respectively; The other end of TVS pipe TVS10 connects 2,3,4,5 ends of antenna J5,5 end ground connection respectively; Inductance L 3, TVS pipe TVS10, electric capacity C38 and electric capacity C39 constitute the receiving antenna of GPS module, for receiving gps signal, and positioning equipment height and geographic position.Resistance R70 one end connects VDD33 and resistance R74 respectively, and the other end is one end of contact resistance R71 and the 15th pin of GPS chip M2 respectively; One end of resistance R71 connects the 15th pin and resistance R70 one end of GPS chip M2, one end of other end contact resistance R75 and ground connection; One end of the 14th pin difference contact resistance R74 and resistance R75 of GPS chip M2; The resistance R74 other end connects VDD33 and resistance R70 one end; Resistance R75 other end contact resistance R71 one end and ground connection; Resistance R72 and resistance R73 be connected respectively GPS chip M2 the 21st, 20 pins, one end of the other end respectively contact resistance R26, resistance R30, the other end of resistance R26 and resistance R30 respectively connection layout 2 STM32F103 processor chips U1 the 12nd, 13 pins; Resistance R69 mono-termination VDD33, other end connecting resistance R72 and resistance R26; 22nd pin of resistance R67 mono-termination capacitor C36 one end and GPS chip M2, the positive pole of other end difference connecting resistance R103 one end and battery BT2; Resistance R36 other end ground connection; Battery BT2 other end ground connection; Another termination of resistance R103 processor chips U1; Inductance L 2 one end connects the 23rd pin of electric capacity C33, electric capacity C34, GPS chip M2 respectively, and the other end connects electric capacity C35, electric capacity C37, the positive pole of courage electric capacity CT2, VDD33 power supply respectively; Electric capacity C33 other end ground connection; Electric capacity C34 other end ground connection; The other end common ground of electric capacity C35, electric capacity C37 and courage electric capacity CT2.GPS module is mainly used in locating the geographic position of hanging basket and obtaining the elevation information of hanging basket, is convenient to supervision and management.
The power conversion chip adopted in the present embodiment, STM32F103 processor chips U1, air pressure sensor chip U6, acceleration transducer U12, AD conversion chip U8, GPS chip M2, gsm communication module all adopt matured product.CS1231, GPS chip M2 that power conversion chip adopts LM5116MHX/NOPB, STM32F103 processor chips U1 of TI to adopt STM32F103C6T6, the air pressure sensor chip U6 of ST to adopt LPS25H, the acceleration transducer U12 of ST to adopt LIS3DH, the AD conversion chip U8 of ST to adopt and makes a concerted effort to be adopts the SKG12B of SKYLAB, gsm communication module adopt in the MG2639_V3 of emerging ZTE.Connector J12 and J13, LED and hummer all adopt ripe connector and charactron.
To sum up, the equipment that the invention provides a kind of hanging basket information acquisition and give warning in advance, when hanging basket at work time, hanging basket geographic position can be located and get the information such as relative height, load, inclination angle, vibrations of hanging basket, if vibrations are frequent and violent, equipment alarm; If hanging basket inclination angle exceedes positive and negative 7 ° (precision 0.1 °), equipment alarm; If hanging basket load overload (precision is to 5KG), equipment alarm; The present invention brings major transformation technology to hanging basket industry, have employed Internet of Things+concept, hanging basket is made to become an intelligentized equipment, first the data gathered are processed by the embedded software in chip, hanging basket data have the information of warning and danger directly to remind hanging basket site operation personnel by the hummer on equipment, play the function given warning in advance.Then by gsm communication module, data are transferred to cloud service platform, are analyzed the operation conditions of hanging basket by large data analysis.The present invention adopts gsm communication module and GPS module, so be applicable to complicated working environment, comprise the environment such as building site, applicability is wide.
The above; be only the embodiment in the present invention; but protection scope of the present invention is not limited thereto; any people being familiar with this technology is in the technical scope disclosed by the present invention; the collection or process expected can be understood; all should be encompassed in and of the present inventionly comprise within scope, therefore, protection scope of the present invention should be as the criterion with the protection domain of claims.
Claims (7)
1. an intelligentized hanging basket information collecting device, is characterized in that being made up of power conversion unit, STM32F103 processor module, sensor assembly, GPS locating module, gsm communication module, buzzer warning module and clock circuit, wherein:
AC power is converted to low-voltage dc power supply by power conversion unit, Power convert unit is connected with STM32F103 processor module, sensor assembly, GPS locating module, gsm communication module, buzzer warning module and clock circuit respectively, provides low-voltage dc power supply for passing STM32F103 processor module, sensor assembly, GPS locating module, gsm communication module, buzzer warning module and clock circuit;
Sensor assembly comprises baroceptor, acceleration transducer, gravity sensor; Baroceptor is for obtaining the relative height of hanging basket; Acceleration transducer gathers the vibration information of hanging basket and the inclination angle of hanging basket, and for monitoring and the early warning of hanging basket, when shaking frequently and acutely, hanging basket can pass through buzzer warning, and alarm lamp flicker, time inclination angle is greater than setting value, can report to the police equally; The status information that gravity sensor runs for gathering hanging basket, generates hanging basket running status simulating signal, thus measures the load whether overload of hanging basket;
GPS locating module gathers geographic position and the elevation information of hanging basket, for locating the geographic position of each hanging basket, and the real time execution height of hanging basket;
Gsm communication module is transmitted for the data of intelligent hanging basket information collecting device, by gsm communication module, the hanging basket service data collected is uploaded on Cloud Server, for data analysis and hanging basket status queries;
STM32F103 processor module is used for operation and the information processing of whole circuit; Sensing data process, GPS location, gsm communication;
Buzzer warning module is used for hanging basket and reports to the police;
Clock circuit provides the RTC time accurately.
2. the intelligentized hanging basket information collecting device of one according to claim 1, is characterized in that: described power conversion unit (A1) piles rectification circuit (A102), DC/DC chip (A103) by AC36V alternating voltage (A101), bridge, 12V turns 3.8V circuit (A104), 12V turns 3.3V circuit (A105) and LED (A106) forms; AC36V alternating voltage (A101) is piled rectification circuit (A102) by bridge and is converted 50V constant voltage DC to, 12V electric current of voltage regulation is converted to again by DC/DC chip (A103), wherein 12V turns 3.8V circuit (A104) by 12V and converts 3.8V voltage to, and 12V turns 3.3V circuit (A105) by 12V and converts 3.3V voltage to; Wherein 12V is LED (A106) and hummer module (A5) power supply, 3.8V is gsm communication module (A4) power supply, and 3.3V is STM32F103 processor module (A6), sensor assembly (A2), GPS locating module (A3), clock circuit (A7) power supply.
3. the intelligentized hanging basket information collecting device of one according to claim 1, is characterized in that: described STM32F103 processor module comprises processor chips U1, resistance R4, R5, R6, R7, R8, R9, R15, R16, R18, R19, R38, R37, R39, R32, R34, R26, electric capacity C6, C7, C12, C13, crystal oscillator 32K-XTAL, crystal oscillator 8M-XTAL; Processor chips U1 the 12nd, 13,18,30,31 pin connect 3.3V voltage; 15th, 17,44 pin ground connection; 3rd pin of processor chips U1 connects crystal oscillator 32K-XTAL one end and electric capacity C6 one end, electric capacity C6 other end ground connection; 4th pin of processor chips U1 meets the crystal oscillator 32K-XTAL other end and electric capacity C7, electric capacity C7 other end ground connection; 5th pin of processor chips U1 connects 1 end of crystal oscillator 8M-XTAL, resistance R16 one end and electric capacity C13 one end, 2 ends of another termination capacitor C12 of resistance R16 and crystal oscillator 8M-XTAL, electric capacity C12 other end ground connection; 6th pin of processor chips U1 connects 2 ends of crystal oscillator 8M-XTAL; The 12nd pin connecting resistance R26 one end of processor chips U1, the transmission serial ports of another termination GPS locating module of resistance R26; The 13rd pin connecting resistance R30 one end of processor chips U1, the reception serial ports of another termination GPS locating module of resistance R30.
4. the intelligentized hanging basket information collecting device of one according to claim 3, is characterized in that: described sensor assembly A2 is made up of baroceptor (A201), acceleration transducer (A202), KEY angle clearing button (A203), CS1231AD conversion chip (A204), gravity sensor (A205);
Baroceptor (A201) comprises processor chips U6, resistance R81, R84, R85, R76, R77, R78, R79, electric capacity C40, C41; Electric capacity C41 mono-termination processor chips U6 the 1st, 10 pins, VDD33 and electric capacity C40, electric capacity C40 and electric capacity C41 other end ground connection; 2nd pin of processor chips U6 connects the 42nd pin of place STM32F103 processor chips U1 and the 4th pin of acceleration transducer processor chips U12, and connecting resistance R76 one end, another termination VDD33 power supply of resistance R76; The 3rd pin connecting resistance R84 one end of processor chips U6, resistance R84 other end ground connection; 4th pin of processor chips U6 connects the 43rd pin of STM32F103 processor chips U1, the 6th pin of acceleration transducer processor chips U12 and resistance R77 one end, another termination VDD33 power supply of resistance R77 respectively; The 5th pin connecting resistance R85 one end of processor chips U6, resistance R85 other end ground connection; 6th pin of processor chips U6 connects VDD33 power supply; 7th pin of processor chips U6 connects the 46th pin and resistance R78 one end of STM32F103 processor chips U1, another termination VDD33 power supply of resistance R78 respectively; Resistance R79 mono-termination VDD33 power supply, the 45th pin of another termination STM32F103 processor chips U1;
Acceleration transducer A202 comprises processor chips U12, resistance R102, R87, electric capacity C87, C88; 1st pin of resistance R102 one end connection handling device chip U12, the 14th pin of other end connection handling device chip U12 and VDD33 power supply; Electric capacity C87 one end connects VDD33 power supply and electric capacity C88 one end; Processor chips U12 the 10th, 12 pins are connected to electric capacity C87 and the electric capacity C88 other end and ground connection; Processor chips U12 the 4th, 6 pins connect respectively air pressure sensor chip U6 the 2nd, 4 pins and STM32F103 processor chips U1 the 42nd, 43 pins; The 5th pin ground connection of processor chips U12; The 7th, 8 pin connecting resistance R87 one end of processor chips U12, another termination VDD33 power supply of resistance R87; Processor chips U12 the 9th, 11 pins connect respectively STM32F103 processor chips U1 the 29th, 41 pins;
KEY angle resets button (A203) and comprises resistance R105, K switch 3, TVS pipe TVS11; Resistance R105 mono-termination VDD33 power supply, the other end connects TVS pipe TS11 one end and K switch 3 one end respectively; The other end ground connection of K switch 3 and TVS pipe TS11; K switch 3, TSV pipe TVS11 and resistance R105 connect the 27th pin of STM32F103 processor chips U1 jointly;
Gravity sensor (A205) comprises resistance R120, R121, R122, R123, R86, R109, R113, R117, electric capacity C106, C108, C107, C109, C104, C105, connector J12, J13; VDD33 connects the 1st pin of AD conversion chip U8; AD conversion chip U8 the 2nd, 3,9,11 ground connection; AVDD33 connect AD conversion chip U8 the 4th, 10,12 pins, and one end of connecting resistance R113, electric capacity C104 and electric capacity C105; 14th pin of another termination of resistance R113 AD conversion chip U8; Another termination AD conversion chip U8 of electric capacity C104 and electric capacity C105 the 9th, 11 pins and ground connection; Electric capacity C107 one end connects the 5th pin of AD conversion chip U8, one end of electric capacity C106 respectively, and the electric capacity C107 other end connects the 6th pin of AD conversion chip U8, one end of electric capacity C108 respectively; Electric capacity C106 other end ground connection; Another termination capacitor C106 one end of electric capacity C108 ground connection; Resistance R86 and resistance R109 one end connect respectively AD conversion chip U8 the 16th, 15 pins, the other end connect respectively STM32F103 processor chips U1 the 16th, 14 pins; 13rd pin of resistance R117 mono-termination AD conversion chip U8, other end ground connection; The pin 1 of connector J12 meets VDDSEN, pin 2 connecting resistance R120 one end, pin 3 connecting resistance R121 one end, pin 4 ground connection; 7th pin of resistance R120 respectively connecting resistance R122 one end, electric capacity C109 one end and AD conversion chip U8; Resistance R121 connects the 8th pin of the electric capacity C109 other end and AD conversion chip U8 respectively; Electric capacity C109 connect respectively AD conversion chip U8 the 7th, 8 pins, resistance R120, resistance R121, resistance R122, resistance R123 one end; The pin 1 of connector J13 meets VDDSEN, pin 2 connecting resistance R122 one end, pin 3 connecting resistance R123 one end, pin 4 ground connection; 7th pin of the resistance R122 other end respectively connecting resistance R120 one end, electric capacity C109 one end and AD conversion chip U8; 8th pin of the resistance R123 other end respectively connecting resistance R121 one end, the electric capacity C109 other end and AD conversion chip U8.
5. the intelligentized hanging basket information collecting device of one according to claim 3, is characterized in that: described GPS locating module A3 comprises GPS chip M2, resistance R65, R66, R67, R103, R72, R73, R69, R70, R71, R74, R75, electric capacity C100, C38, C39, C36, C33, C34, C35, C37, inductance L 7, L3, L2, LED 2, triode Q8, TVS pipe TVS10, antenna J5, battery BT2, courage electric capacity CT2; GPS chip M2 the 10th, 12,25,26,13,24 ground connection; 1 terminating resistor R66 one end of triode Q8,2 end ground connection, the negative electrode K of 3 termination LEDs 2; 1st pin of another termination GPS chip of resistance R66 M2; The anode A of resistance R65 one end sending and receiving optical diode LED2, the other end connects one end of VDD33 and electric capacity C100 respectively; Electric capacity C100 other end ground connection; Inductance L 7 two ends connect respectively GPS chip M2 the 8th, 9 pins; 11st pin of inductance L 3 one termination capacitor C39 one end and GPS chip M2, the other end connects electric capacity C38,1 end of antenna J5, one end of TVS pipe TVS10 respectively; Electric capacity C38 and electric capacity C39 other end ground connection respectively; The other end of TVS pipe TVS10 connects 2,3,4,5 ends of antenna J5,5 end ground connection respectively; Resistance R70 one end connects VDD33 and resistance R74 one end respectively, and the other end is one end of contact resistance R71 and the 15th pin of GPS chip M2 respectively; One end of resistance R71 connects the 15th pin and resistance R70 one end of GPS chip M2, one end of other end contact resistance R75 ground connection; One end of the 14th pin difference contact resistance R74 and resistance R75 of GPS chip M2; The resistance R74 other end connects VDD33 and resistance R70 one end; Resistance R75 other end contact resistance R71 one end ground connection; Resistance R72 and resistance R73 be connected respectively GPS chip M2 the 21st, 20 pins, one end of the other end respectively contact resistance R26, resistance R30, resistance R26 and the other end of resistance R30 be connected respectively STM32F103 processor chips U1 the 12nd, 13 pins; Resistance R69 mono-termination VDD33, other end connecting resistance R72 and resistance R26; 22nd pin of resistance R67 mono-termination capacitor C36 one end and GPS chip M2, the positive pole of other end difference connecting resistance R103 one end and battery BT2; Resistance R36 other end ground connection; Battery BT2 other end ground connection; Another termination of resistance R103 processor chips U1; Inductance L 2 one end connects the 23rd pin of electric capacity C33 one end, electric capacity C34 one end, GPS chip M2 respectively, and the other end connects electric capacity C35 one end, electric capacity C37 one end, the positive pole of courage electric capacity CT2, VDD33 power supply respectively; Electric capacity C33 other end ground connection; Electric capacity C34 other end ground connection; The other end common ground of electric capacity C35, electric capacity C37 and courage electric capacity CT2.
6. the intelligentized hanging basket information collecting device of one according to claim 1, is characterized in that: wherein, and described gsm communication module comprises GSM chip, antenna and LED composition; Be mainly used in communication and data transmission use, the hanging basket data obtained are transferred to Cloud Server; Whether LED instruction gsm communication module has exception.
7. the intelligentized hanging basket information collecting device of one according to claim 3, is characterized in that: described buzzer warning module comprises light emitting diode LD1, hummer BZ2, triode Q1, resistance R39, R23, R27, R127, electric capacity C11, common anode pole Xiao Jite pipe D2; 18th pin of resistance R39 mono-termination STM32F103 processor chips U1, the negative electrode of the other end sending and receiving optical diode LD1 of resistance R39; One end of the one terminating resistor R39 of light emitting diode LD1, another termination power vd D33; 19th pin of resistance R27 mono-termination STM32F103 processor chips U1,1 end of resistance R27 other end difference connecting resistance R29 one end, triode Q1; One end of the 3 terminating resistor R23 of triode Q1, the other end of the 2 terminating resistor R29 of triode Q1 and common ground; Contact resistance R23 one end, 2 ends of hummer BZ2, one end of resistance R127 respectively, one end of common anode pole Schottky tube D2, the other end of common anode pole Schottky tube D2 connects 1 end of hummer BZ2, the other end of resistance R127, one end of electric capacity C11 and power supply+12V respectively; One end of the 1 terminating resistor R127 of hummer BZ2, one end of the 2 terminating resistor R23 of hummer BZ2; Electric capacity C11 other end ground connection.
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