CN100380127C - Wireless accelerating sensor with digital signal as interface - Google Patents
Wireless accelerating sensor with digital signal as interface Download PDFInfo
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- CN100380127C CN100380127C CNB2004100136597A CN200410013659A CN100380127C CN 100380127 C CN100380127 C CN 100380127C CN B2004100136597 A CNB2004100136597 A CN B2004100136597A CN 200410013659 A CN200410013659 A CN 200410013659A CN 100380127 C CN100380127 C CN 100380127C
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Abstract
The present invention provides a wireless acceleration transducer with digital signals as interfaces. The present invention comprises a wireless send receive module and micro processor units ATMEGA8 and ADXL202, wherein a whole circuit is composed of circuit boards; each circuit board is composed of a wireless send receive circuit board, a micro processor and an acceleration transducer; the two circuit boards are connected through plate edges and share one power supply. The present invention has the advantages of high stability, high reliability, good real time performance, etc. The present invention solves the problems of low analog signal collection reliability and poor interference rejection. The present invention can be designed into a mode that a subprogram is embedded into an optional position of programs according to actual collecting requirements. The present invention has strong commonality on signal collection of the transducers with digital interfaces. Because of the utilization of wireless transmission acceleration signals, the present invention has the advantages of easy assembly and disassembly, low wiring cost of conducting wires and assembly time saving.
Description
(1) technical field
What the present invention relates to is a kind of sensor that is suitable for using the civil engineering structure monitoring.Specifically a kind ofly utilize the existing Wireless Acceleration Sensor that is constituted based on the MEMS technology.
(2) background technology
Traditional civil engineering structure is a kind of passive structure, and its performance and user mode exist unpredictability to a great extent.The introducing of information science notion, for obtaining of configuration state information provides a brand-new approach, and configuration state information is to utilize various kinds of sensors to extract.The U.S. lays sensor at many bridge blocks since the middle and later periods eighties 20th century, in order to checking design assumption, monitoring construction quality and military service safe condition, on the Sunshine SkywayBridge bridge as the Florida State more than 500 sensor has been installed.Britain begins development and sensor installation equipment the later stage eighties.1999, the Tsing Ma Bridge in China Hong Kong and landlocked Humen bridge and Jiangyin Yangtze Bridge were also all installed sensing device.The above-mentioned sensing device that relates to all is output simulating signal, wire transmission, utilizes A/D to gather again and snaps on the PC, and the mode reliability of this acquired signal is not high, be subject to external interference.Utilize digital interface to gather that the configuration state information stability is good, reliability is high; Image data can be carried out pre-service, wireless transmission at microprocessor, has reduced the workload of deal with data on the PC, thereby has improved the efficient of computer processing data.
Sensor chip based on digital interface is a kind of integrated chip, its inside has modulation-demodulation circuit, utilize this circuit that the conversion of signals that collects is become the pulse duty factor signal, and the duty cycle signals size becomes certain proportionate relationship with the information of configuration state, thereby reflects the actual change situation of structure.This type of sensor chip adopts the MEMS technology to process, and constitutes a measuring system on chip.With the ADXL202E of U.S. ADI company is that example: ADXL202E is that the micromotor sensor on surface and signal controlling loop come executable operations to carry out open loop to quicken twin shaft and measure with the polysilicon, it adopts on silicon chip through surface micromachined polysilicon structure, supports it and provides the balance acceleration required resistance with the flexible member of polysilicon.Structure deflection is by by fixed polar plate independently be attached to the variable capacitance that the center pad on the mobile object forms and measure.Fixed polar plate utilizes every π phase control of square wave, changes the balance of variable capacitance under the acceleration effect, and the amplitude of output square wave is directly proportional with acceleration.The phase demodulating technology is used for information extraction, judges acceleration direction.For every axle, the output loop is the digital signal output of pulse duty cycle with analog signal form or with analog signal conversion directly.The digital signal output of its pulse duty cycle is as follows:
T wherein
1/ T
2Be the dutycycle of actual measurement, U
0gBe the dutycycle of 0 acceleration, U
1gBe the dutycycle of g acceleration, just can calculate actual accekeration according to above-mentioned formula.This sensor is used in inertial navigation, seismic monitoring device and traffic safety system at present to some extent, but all is to utilize the simulating signal of its output to gather.
At present, what the data acquisition of various monitoring structural health conditions was mainly adopted is that tradition " wired " sensor is realized, acquired signal is accurate, vulnerability to jamming good although this acquisition mode has, the characteristics of product seriation, but the monitoring network wiring amount of utilizing " wired " sensor to form is big, maintenance cost is high, poor reliability, even can't realize wiring in some structures.Along with sensing technology, wireless communication technology and Mems technology development, wireless sensor technology has begun to civil structure monitoring infiltration and has become the focus of this respect research.
(3) summary of the invention
The object of the present invention is to provide a kind of monitoring structural health conditions, accurate in real time that is used for, compact conformation is used for the radio acceleration sensing device that digital signal is an interface.
The purpose of this utility model is achieved in that it comprises radio receiving transmitting module, microprocessor unit ATMEGA8 and ADXL202, entire circuit is made up of the circuit board that wireless transceiver circuit plate and microprocessor and acceleration transducer constitute, and 2 circuit boards connect and a shared power supply by edges of boards.
Physical circuit of the present invention can be:
1, consisting of of radio receiving transmitting module: the crystal oscillator Y20 of resistance R 21, capacitor C 21, C22,4M and U2 (NRF401) pin 1,20 connect and compose crystal oscillating circuit; C24 and R22 series connection are connected to the loop filter that U2 pin 3,4 is connected to form U2 again with after C23 is in parallel; Inductance L 21 connects and composes Voltage-Controlled oscillation circuit with U2 pin 5,6; C25, C28 are connected with U2 pin 13, and C27 is connected with U2 pin 8, and C26 is connected with U2 pin 2, form the power supply filtering circuit of U2 jointly; R23 and U2 pin join and constitute emissive power circuit is set; Antenna and C29 are connected to U2 pin 15,16 and constitute antenna loop; Pin 3,7,14,17 ground connection of U2,2,8,13 connect power supply; Pin 4, the pin 10 that the pin 9 of U2 meets CON7 (i.e. the edge-board connector of 7 pin) connects CON7 pin 3, pin 12 connects the pin 2 of CON7, the pin 6 that pin 18 meets CON7, the pin 7 that pin 19 meets CON7; C30, C31 are connected to power supply and the ground of CON7, constitute electric source filter circuit;
Consisting of of microprocessor and acceleration transducer: U1 (being acceleration transducer ADXL202) pin 8 connects the filtering circuit that is made of R11, C13; The pin 6 of U1 connects capacitor C 12, pin 7 connects capacitor C 11; The pin 4 that the pin 5 of U1 meets the U0 pin 5 of (referring to microprocessor ATMEGA8), U1 connects the pin 4 of U0; R01, C01 link to each other with U0 pin 1 and constitute electrify restoration circuit, and the crystal oscillator Y00 that C02, C03 are connected with U0 pin 9,10 constitutes crystal oscillating circuit; Light emitting diode D01, D02 and resistance R 02, R03 form signal display circuit, link to each other with U0 pin 15,16; R04, R05, C04, C05 and U0 pin 20,21 constitute the analog acquisition auxiliary circuit; U0 pin 6,11,17,18,19,23,24,25,26,27,28 does not connect; U0 pin 13 is connected with the CON7 pin 6 of radio receiving transmitting module, and U0 pin 14 links to each other with the CON7 pin 7 of radio receiving transmitting module; U0 pin 12 links to each other with CON7 pin 2; U0 pin 7 connects power supply, pin 8 and 22 ground connection; Power supply adopts the 2 common 1.5V batteries of joint or adopts lithium battery to constitute.
2, consisting of of radio receiving transmitting module: an end of resistance R 21, capacitor C 23 links to each other with the pin 1 of chip U2 (i.e. the AT90S2313 of 20 pin) and constitutes electrify restoration circuit; Capacitor C 24, a C25 end in parallel and ground, the other end and the power supply formation filtering circuit that joins; Capacitor C 21, C22 one end ground connection in parallel, the other end connect the crystal oscillating circuit of the crystal oscillator Y21 formation U2 of 10M respectively; The pin 7,8,9,15,16,17,18,19 of U2 does not have connection, and 10 ground connection, 20 connect power supply; Pin 9, the pin 2 that the pin 1 of U2 meets CON9 (i.e. the edge-board connector of 9 pin) connects the pin 7 that CON9 pin 6, pin 3 meet CON9; Pin 24 is connected the pin 6 of U2, pin 11 is connected with U3 pin 27, pin 12 is connected with U3 pin 26, pin 13 is connected with U3 pin 25, pin 14 is connected with U3 pin 23 with chip U3 (being CC1000); Inductance L 31, L32, capacitor C 31, C32, C33, antenna E31 connect and compose the reception radiating portion, and this part is connected with pin 3, the pin 4 of U3; L33 connects the pin 10,11 of U3, constitutes Voltage-Controlled oscillation circuit; R31 is connected to the pin 13 of U3; Capacitor C 39, C40 and the 14.7456M crystal oscillator Y31 that is connected to the pin 17,18 of U3 constitute crystal oscillating circuit; The pin 1,5,9,15,21 of U3 connects power supply, pin 2,6,7,8,14,16,19,20,22 ground connection, and pin 12,28 does not have connection; C34, C35, C36, C37, C38 are common electric source filter circuits.
Consisting of of microprocessor and acceleration transducer: U1 (being acceleration transducer ADXL202) pin 8 connects the filtering circuit that is made of R11, C13; The pin 6 of U1 connects capacitor C 12, pin 7 connects capacitor C 11; The pin 4 that the pin 5 of U1 meets the U0 pin 5 of (referring to microprocessor ATMEGA8), U1 connects the pin 4 of U0; R01, C01 link to each other with U0 pin 1 and constitute electrify restoration circuit; The crystal oscillator Y00 that C02, C03 are connected with U0 pin 9,10 constitutes crystal oscillating circuit; Light emitting diode D01, D02 and resistance R 02, R03 form signal display circuit, link to each other with U0 pin 15,16; R04, R05, C04, C05 and U0 pin 20,21 constitute the analog acquisition auxiliary circuit; U0 pin 6,11,12,14,17,18,19,23,24,25,26,27,28 does not connect; U0 pin 3 is connected with the CON9 pin 6 of radio receiving transmitting module; U0 pin 2 is connected with the CON9 pin 7 of radio receiving transmitting module; U0 pin 13 is connected with the CON9 pin 9 of radio receiving transmitting module; Power supply adopts the 2 common 1.5V batteries of joint or adopts lithium battery to constitute.
The invention has the advantages that: 1, select for use based on the MEMS technology and have the sensor chip of digital signal output.2, select various electronic component design ADXL202E application circuits for use.3, select microprocessor for use, the numeral output of its IO mouth and ADXL202E is joined, and its asynchronous serial port links to each other with wireless communication module.4, integrated ADXL202E circuit, energy module, microprocessor and wireless module form Wireless Acceleration Sensor in one.5, microprocessing unit module, wireless module size unanimity.6, according to the structure sampling characteristics, structural correction algorithm and sampling algorithm.7, program realizes.The correcting algorithm that embeds in wherein installing, be meant in Wireless Acceleration Sensor behind power-up initializing, embed one section program at microprocessor internal, come sensor be not subjected under the external environment load its output to be gathered and filtering the reference value U when calculating the result as 0 acceleration
0gSampling algorithm refers to that sensor carries out signals collecting to the variation of institute's monitoring target, and according to formula the signal of gathering is handled, and calculates actual measured value.
Although being applied to the civil structure monitoring, wireless senser also is in the Primary Study stage, the present invention becomes one ADXL202E acceleration transducer, microprocessor, radio receiving transmitting module and energy module, be configured for the Wireless Acceleration Sensor of civil engineering structure overall situation monitoring, node is easy to assembling and disassembling, save the expense of laying lead and save characteristics such as set-up time has determined Wireless Acceleration Sensor to have broad prospects and practical value.
(4) description of drawings
Fig. 1 is a theory structure synoptic diagram of the present invention;
Fig. 2 is the electrical block diagram of a kind of embodiment of the present invention;
Fig. 3 is the electrical block diagram of another embodiment of the present invention.
(5) concrete enforcement
Selecting the ADXL202E based on the MEMS technology for use is sensor, and at the characteristics of civil engineering structure signal based on low frequency, designing its index is T2=130/125=1.04ms, bandwidth 50Hz design.Select for use possess low-power consumption, the ATMEGA8L of characteristics such as large buffer memory, little pin package makes microprocessor.Design microprocessing unit module adopts 2 layers of pcb board.Mainly crystal oscillating circuit, ADXL202E application circuit and filtering circuit on the pcb board.The terminal that radio receiving transmitting module is drawn is connected with the microprocessing unit module terminals.Energy module adopts general lithium battery or the common batteries in market, and its output voltage is between 3-5V.ADXL202E application circuit, microprocessing unit module, wireless module, energy module are integrated in one the integrated wireless acceleration transducer.
Physical circuit can be:
In conjunction with Fig. 2, be the common Wireless Acceleration Sensor of forming of radio receiving transmitting module, microprocessor unit ATMEGA8 and ADXL202 of core with NRF401.Entire circuit is made up of the circuit board that wireless transceiver circuit plate and microprocessor and acceleration transducer constitute, and 2 circuit boards couple together by edge-board connector CON7.Concrete electrical connection situation is as follows: for radio receiving transmitting module, the crystal oscillator Y20 of resistance R 21, capacitor C 21, C22,4M and U2 (NRF401, down together) pin 1,20 connects and composes crystal oscillating circuit.C24 and R22 series connection are connected to the loop filter that U2 pin 3,4 is connected to form U2 again with after C23 is in parallel, realize filter action.Inductance L 21 connects and composes Voltage-Controlled oscillation circuit with U2 pin 5,6, produces the oscillation frequency of U2.C25, C28 are connected with U2 pin 13, and C27 is connected with U2 pin 8, and C26 is connected with U2 pin 2, form the power supply filtering circuit of U2 jointly.R23 and U2 pin join and constitute emissive power circuit is set, and set emissive power.Antenna (LOOPANTENA) and C29 are connected to U2 pin 15,16 and constitute antenna loop.Pin 3,7,14,17 ground connection of U2 (being GND, down together), 2,8,13 connect power supply (being Vcc, down together).The pin 9 of U2 connects CON7 (the i.e. edge-board connector of 7 pin, pin 4, pin 10 down together) connects CON7 pin 3, pin 12 connects the pin 2 of CON7, the pin 6 that pin 18 meets CON7, the pin 7 that pin 19 meets CON7, receiving CON7 mainly is for the circuit board with microprocessor and acceleration transducer formation is connected, and finishes the wireless receiving and dispatching of data jointly.C30, C31 are connected to power supply and the ground of CON7, constitute electric source filter circuit.For the circuit board of microprocessor and acceleration transducer formation, U1 (being acceleration transducer ADXL202, down together) pin 8 connects the filtering circuit that is made of R11, C13.The pin 6 of U1 connects capacitor C 12, pin 7 connects the bandwidth that capacitor C 11 is provided with acquired signal jointly.The pin 4 that the pin 4 that the pin 5 of U1 meets the U0 pin 5 of (referring to microprocessor ATMEGA8), U1 meets U0 inputs to U0 with the acceleration signal gathered with the form of digital signal jointly.R01, C01 link to each other with U0 pin 1 and constitute electrify restoration circuit, and the crystal oscillator Y00 that C02, C03 are connected with U0 pin 9,10 constitutes crystal oscillating circuit, the processing speed of control U0.Light emitting diode D01, D02 and resistance R 02, R03 form signal display circuit, link to each other with U0 pin 15,16, and by the next light on and off according to actual conditions control D01, D02 of the inner program that embeds of U0.R04, R05, C04, C05 and U0 pin 20,21 constitute the analog acquisition auxiliary circuit, and this mainly gathers simulating signal for expansion and prepares. U0 pin 6,11,17,18,19,23,24,25,26,27,28 does not connect, can be according to the actual flexible configuration that requires.U0 pin 13 is connected with the CON7 pin 6 of radio receiving transmitting module, and U0 pin 14 links to each other with the CON7 pin 7 of radio receiving transmitting module, the wireless receiving and dispatching of common control signal.Be output as high level when U0 pin 13 is output as high level and U0 pin 14 according to program according to program, U0 pin 3 is connected the acceleration signal that can finish gathering and passes to U2 with the CON7 pin 4 of radio receiving transmitting module, launch with wireless form.Be output as low level when U0 pin 13 is output as high level and U0 pin 14 according to program according to program, U0 pin 2 is connected with the CON7 pin 3 of radio receiving transmitting module and the data that U2 receives can be passed to U0, finishes data wireless and receives.U0 pin 12 links to each other with CON7 pin 2, the selection of control wireless communication, and the high level communication channel is 434.33MHz, the low level signaling channel is 433.92MHz.U0 pin 7 connects power supply, pin 8 and 22 ground connection.Power supply adopts the 2 common 1.5V batteries of joint usually or adopts lithium battery to constitute.
2,, be to be the common Wireless Acceleration Sensor of forming of radio receiving transmitting module, microprocessor unit ATMEGA8 and ADXL202 of core with CC1000 in conjunction with Fig. 3.Entire circuit is made up of the circuit board that wireless transceiver circuit plate and microprocessor and acceleration transducer constitute, and 2 circuit boards couple together by edge-board connector CON9.Concrete electrical connection situation is as follows: for radio receiving transmitting module, an end of resistance R 21, capacitor C 23 links to each other with the pin 1 of chip U2 (i.e. the AT90S2313 of 20 pin) and constitutes electrify restoration circuit, makes better initialization of entire circuit.Capacitor C 24, a C25 end in parallel and ground (being GND, down together), the other end and power supply (being Vcc, the down together) formation of joining filtering circuit play power filter.Capacitor C 21, C22 one end ground connection in parallel, the other end connect the crystal oscillating circuit of the crystal oscillator Y21 formation U2 of 10M respectively, make U2 have the processing speed of 1 0MIPS.The pin 7,8,9,15,16,17,18,19 of U2 does not have connection (can use flexibly according to actual conditions), 10 ground connection, 20 connect power supply.Pin 9, the pin 2 that the pin 1 of U2 meets CON9 (i.e. the edge-board connector of 9 pin, down with) connects the pin 7 that CON9 pin 6, pin 3 meet CON9, to receive CON9 and mainly is in order to be connected with circuit board that microprocessor and acceleration transducer constitute.Pin 6 and the chip U3 of U2 (are CC1000, down together) pin 24 connects, pin 11 is connected with U3 pin 27, pin 12 is connected with U3 pin 26, pin 13 is connected with U3 pin 25, pin 14 is connected with U3 pin 23, the program that the continuous utilization of these pin is embedded in the U2 just can send data with wireless, form that also can be wireless receives data.Inductance L 31, L32, capacitor C 31, C32, C33, antenna E31 are by connecting and composing the reception radiating portion among the figure, this part is connected with pin 3, the pin 4 of U3, and U3 transmits and receives data by this part circuit.L33 connects the pin 10,11 of U3, constitutes Voltage-Controlled oscillation circuit, produces the oscillation frequency of U3.R31 is connected to the pin 13 of U3, assists U3 to finish the data wireless transmitting-receiving.Capacitor C 39, C40 and the 14.7456M crystal oscillator Y31 that is connected to the pin 17,18 of U3 constitute crystal oscillating circuit, finish the setting to transmitting-receiving speed.The pin 1,5,9,15,21 of U3 connects power supply, pin 2,6,7,8,14,16,19,20,22 ground connection, and pin 12,28 does not have connection.C34, C35, C36, C37, C38 are common electric source filter circuits, needn't give unnecessary details; For the circuit board of microprocessor and acceleration transducer formation, U1 (being acceleration transducer ADXL202, down together) pin 8 connects the filtering circuit that is made of R11, C13.The pin 6 of U1 connects capacitor C 12, pin 7 connects the bandwidth that capacitor C 11 is provided with acquired signal jointly.The pin 4 that the pin 4 that the pin 5 of U1 meets pin 5, the U1 of U0 (refer to microprocessor ATMEGA8, down with) meets U0 inputs to U0 with the acceleration signal gathered with the form of digital signal jointly.R01, C01 link to each other with U0 pin 1 and constitute electrify restoration circuit, and the crystal oscillator Y00 that C02, C03 are connected with U0 pin 9,10 constitutes crystal oscillating circuit, the processing speed of control U0.Light emitting diode D01, D02 and resistance R 02, R03 form signal display circuit, link to each other with U0 pin 15,16, and by the next light on and off according to actual conditions control D01, D02 of the inner program that embeds of U0.R04, R05, C04, C05 and U0 pin 20,21 constitute the analog acquisition auxiliary circuit, and this mainly gathers simulating signal for expansion and prepares. U0 pin 6,11,12,14,17,18,19,23,24,25,26,27,28 does not connect, can be according to the actual flexible configuration that requires.U0 pin 3 is connected with the CON9 pin 6 of radio receiving transmitting module, finishes the acceleration signal of gathering is passed to U2, is launched with wireless form by U2 control U3 again.U0 pin 2 is connected with the CON9 pin 7 of radio receiving transmitting module, and the data that U3 is received pass to U0 after U2 handles, finish data wireless and receive.U0 pin 13 is connected with the CON9 pin 9 of radio receiving transmitting module, controls that radio receiving transmitting module resets so that operate as normal again under the situation of malfunction.In addition, power supply adopts the 2 common 1.5V batteries of joint usually or adopts lithium battery to constitute.
Claims (2)
1. one kind is the Wireless Acceleration Sensor of interface with digital signal, it comprises radio receiving transmitting module, microprocessor unit ATMEGA8 and acceleration transducer ADXL202, entire circuit is made up of the circuit board that wireless transceiver circuit plate and microprocessor and acceleration transducer constitute, 2 circuit boards connect and a shared power supply by edges of boards, it is characterized in that:
The U0 of the following stated is that microprocessor ATMEGA8, U1 are that acceleration transducer ADXL202, U2 are that NRF401, CON7 are the edge-board connector of 7 pin;
Consisting of of radio receiving transmitting module: the crystal oscillator Y20 of resistance R 21, capacitor C 21, C22,4M and U2 pin 1,20 connect and compose crystal oscillating circuit; C24 and R22 series connection are connected to the loop filter that U2 pin 3,4 is connected to form U2 again with after C23 is in parallel; Inductance L 21 connects and composes Voltage-Controlled oscillation circuit with U2 pin 5,6; C25, C28 are connected with U2 pin 13, and C27 is connected with U2 pin 8, and C26 is connected with U2 pin 2, form the power supply filtering circuit of U2 jointly; R23 and U2 pin join and constitute emissive power circuit is set; Antenna and C29 are connected to U2 pin 15,16 and constitute antenna loop; Pin 3,7,14,17 ground connection of U2,2,8,13 connect power supply; Pin 4, the pin 10 that the pin 9 of U2 meets the edge-board connector CON7 of 7 pin connects CON7 pin 3, pin 12 connects the pin 2 of CON7, the pin 6 that pin 18 meets CON7, the pin 7 that pin 19 meets CON7; C30, C31 are connected to power supply and the ground of CON7, constitute electric source filter circuit;
Consisting of of microprocessor and acceleration transducer: the pin 8 of acceleration transducer U1 connects the filtering circuit that is made of R11, C13; The pin 6 of U1 connects capacitor C 12, pin 7 connects capacitor C 11; The pin 5 of U1 connects the pin 5 of microprocessor U0, the pin 4 of U1 connects the pin 4 of U0; R01, C01 link to each other with U0 pin 1 and constitute electrify restoration circuit, and the crystal oscillator Y00 that C02, C03 are connected with U0 pin 9,10 constitutes crystal oscillating circuit; Light emitting diode D01, D02 and resistance R 02, R03 form signal display circuit, link to each other with U0 pin 15,16; R04, R05, C04, C05 and U0 pin 20,21 constitute the analog acquisition auxiliary circuit; U0 pin 6,11,17,18,19,23,24,25,26,27,28 does not connect; U0 pin 13 is connected with the CON7 pin 6 of radio receiving transmitting module, and U0 pin 14 links to each other with the CON7 pin 7 of radio receiving transmitting module; U0 pin 12 links to each other with CON7 pin 2; U0 pin 7 connects power supply, pin 8 and 22 ground connection; Power supply adopts the 2 common 1.5V batteries of joint or adopts lithium battery to constitute.
2. one kind is the Wireless Acceleration Sensor of interface with digital signal, it comprises radio receiving transmitting module, microprocessor unit ATMEGA8 and acceleration transducer ADXL202, entire circuit is made up of the circuit board that wireless transceiver circuit plate and microprocessor and acceleration transducer constitute, 2 circuit boards connect and a shared power supply by edges of boards, it is characterized in that:
The U0 of the following stated is that microprocessor ATMEGA8, U1 are that acceleration transducer ADXL202, U2 are that AT90S2313, the U3 of 20 pin is that CC1000, CON9 are the edge-board connector of 9 pin;
Consisting of of radio receiving transmitting module: an end of resistance R 21, capacitor C 23 links to each other with the pin 1 of the chip U2 of 20 pin and constitutes electrify restoration circuit; Capacitor C 24, a C25 end in parallel and ground, the other end and the power supply formation filtering circuit that joins; Capacitor C 21, C22 one end ground connection in parallel, the other end connect the crystal oscillating circuit of the crystal oscillator Y21 formation U2 of 10M respectively; The pin 7,8,9,15,16,17,18,19 of U2 does not have connection, and 10 ground connection, 20 connect power supply; Pin 9, the pin 2 that the pin 1 of U2 meets CON9 connects the pin 7 that CON9 pin 6, pin 3 meet CON9; The pin 6 of U2 is connected with chip U3 pin 24, pin 11 is connected with U3 pin 27, pin 12 is connected with U3 pin 26, pin 13 is connected with U3 pin 25, pin 14 is connected with U3 pin 23; Inductance L 31, L32, capacitor C 31, C32, C33, antenna E31 connect and compose the reception radiating portion, and this part is connected with pin 3, the pin 4 of U3; L33 connects the pin 10,11 of U3, constitutes Voltage-Controlled oscillation circuit; R31 is connected to the pin 13 of U3; Capacitor C 39, C40 and the 14.7456M crystal oscillator Y31 that is connected to the pin 17,18 of U3 constitute crystal oscillating circuit; The pin 1,5,9,15,21 of U3 connects power supply, pin 2,6,7,8,14,16,19,20,22 ground connection, and pin 12,28 does not have connection; C34, C35, C36, C37, C38 are common electric source filter circuits;
Consisting of of microprocessor and acceleration transducer: acceleration transducer U1 pin 8 connects the filtering circuit that is made of R11, C13; The pin 6 of U1 connects capacitor C 12, pin 7 connects capacitor C 11; The pin 5 of U1 connects the pin 5 of microprocessor U0, the pin 4 of U1 connects the pin 4 of U0; R01, C01 link to each other with U0 pin 1 and constitute electrify restoration circuit; The crystal oscillator Y00 that C02, C03 are connected with U0 pin 9,10 constitutes crystal oscillating circuit; Light emitting diode D01, D02 and resistance R 02, R03 form signal display circuit, link to each other with U0 pin 15,16; R04, R05, C04, C05 and U0 pin 20,21 constitute the analog acquisition auxiliary circuit; U0 pin 6,11,12,14,17,18,19,23,24,25,26,27,28 does not connect; U0 pin 3 is connected with the CON9 pin 6 of radio receiving transmitting module; U0 pin 2 is connected with the CON9 pin 7 of radio receiving transmitting module; U0 pin 13 is connected with the CON9 pin 9 of radio receiving transmitting module; Power supply adopts the 2 common 1.5V batteries of joint or adopts lithium battery to constitute.
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| CNB2004100136597A CN100380127C (en) | 2004-04-06 | 2004-04-06 | Wireless accelerating sensor with digital signal as interface |
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| CNB2004100136597A CN100380127C (en) | 2004-04-06 | 2004-04-06 | Wireless accelerating sensor with digital signal as interface |
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| CN102269619B (en) * | 2011-05-16 | 2013-01-02 | 杭州电子科技大学 | Wireless sensor network-based acoustic signal acquisition terminal |
| CN104049109B (en) * | 2014-07-07 | 2016-03-30 | 湘潭大学 | A kind of MEMS acceleration transducer servo sensing circuit |
Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN2477496Y (en) * | 2001-02-16 | 2002-02-20 | 武民利 | Locomotive, vehicle running stability detector |
| CN2560947Y (en) * | 2001-01-06 | 2003-07-16 | 中国石化胜利油田有限公司规划设计研究院 | Acceleration transducer |
| CN2562243Y (en) * | 2002-07-22 | 2003-07-23 | 黄飞明 | Sight interfacial controllers |
| CN1458004A (en) * | 2003-05-25 | 2003-11-26 | 朱肃生 | Abrupt deceleration fault pre-warning system for automobile tire and machine |
| GB2390264A (en) * | 2002-06-24 | 2003-12-31 | Samsung Electronics Co Ltd | Detecting Position of Use of a Mobile Telephone |
-
2004
- 2004-04-06 CN CNB2004100136597A patent/CN100380127C/en not_active Expired - Fee Related
Patent Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN2560947Y (en) * | 2001-01-06 | 2003-07-16 | 中国石化胜利油田有限公司规划设计研究院 | Acceleration transducer |
| CN2477496Y (en) * | 2001-02-16 | 2002-02-20 | 武民利 | Locomotive, vehicle running stability detector |
| GB2390264A (en) * | 2002-06-24 | 2003-12-31 | Samsung Electronics Co Ltd | Detecting Position of Use of a Mobile Telephone |
| CN2562243Y (en) * | 2002-07-22 | 2003-07-23 | 黄飞明 | Sight interfacial controllers |
| CN1458004A (en) * | 2003-05-25 | 2003-11-26 | 朱肃生 | Abrupt deceleration fault pre-warning system for automobile tire and machine |
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|---|---|
| CN1680816A (en) | 2005-10-12 |
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