CN102032860A - Wireless displacement sensor - Google Patents
Wireless displacement sensor Download PDFInfo
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- CN102032860A CN102032860A CN 201010573251 CN201010573251A CN102032860A CN 102032860 A CN102032860 A CN 102032860A CN 201010573251 CN201010573251 CN 201010573251 CN 201010573251 A CN201010573251 A CN 201010573251A CN 102032860 A CN102032860 A CN 102032860A
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- control borad
- linear movement
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Abstract
The invention discloses a wireless displacement sensor. The wireless displacement sensor comprises a shell, wherein a working condition indicating lamp is arranged at one end of the shell; and a measuring bar and a measuring head on the end part of the measuring bar are arranged at the other end of the shell. The wireless displacement sensor is characterized in that: an antenna is arranged at one end, at which the working condition indicating lamp is arranged, of the shell; a circuit main control board, a capacitive module and a chargeable battery are arranged in the inner cavity of the shell; the antenna is connected with the circuit main control board through a signal wire; the chargeable battery is connected with the circuit main control board through a contact connecting device on the circuit main control board; the capacitive module is connected with the circuit main control board through a signal wire and supplies electricity through the chargeable battery; the circuit main control board integrates a power supply management module and a functional module; the power supply management module comprises a voltage stabilizing/dividing unit and a battery electric quantity monitoring unit; and the functional module comprises a pulse signal processing unit, a central processing unit (CPU) and a radio frequency unit. The portable chargeable battery serves as a working power supply and is arranged in the shell, so that external wireless technology and equipment integration are completely realized.
Description
Technical field
The present invention relates to a kind of displacement transducer technology, a kind of specifically no linear movement pick-up.
Background technology
About displacement transducer, mainly be to adopt the wired connection form at present, displacement signal is connected to the signal processing circuit of outside appointment by data line, these circuit comprise level shifting circuit, signal amplification circuit, single chip circuit and with the circuit of PC communication, carry out data analysis, processing and demonstration by PC at last, this wired connection mode has not only increased hardware investment, also causes easily because of frequent some faults that caused of using of the plug device of wired connection.
Summary of the invention
In order to solve the problems of the technologies described above, the invention provides a kind of no linear movement pick-up, this no linear movement pick-up can be realized integrated connection, need not by interface unit plug connected mode, and data are directly transferred to data processing equipment by wireless mode.
The technical solution used in the present invention is as follows:
No linear movement pick-up comprises housing, an end installment work status indicator lamp of housing, the other end of housing is installed the gauge head of measuring staff, measuring staff end, it is characterized in that shell end is installed an antenna, be provided with the circuit master control borad in the housing inner chamber, hold grid module and rechargeable battery.
Wherein, antenna is connected with the circuit master control borad by signal wire; Rechargeable battery by the contact on the circuit master control borad in succession device be connected with the circuit master control borad; Holding grid module is to be connected with the circuit master control borad by signal wire, and powers by rechargeable battery.
Above-mentioned working station indicator is connected with the circuit master control borad by signal wire.
Foregoing circuit master control borad and appearance grid module are all fixing spacing in the housing inner chamber by limited post.
The surperficial contact of pasting on the fixed grid that holds grid module and the measuring staff of moving grid, fixed grid and moving grid are realized the measurement of its displacement by electrostatic coupling, when measuring staff moves, moving grid and fixed grid contact area change, be that coupling area changes, capacitance change changes, and capacitance change and couple variations amount are proportional.Simultaneously, couple variations amount and displacement variable also are proportional relations, just can calculate and export a series of signal of the current displacement of expression like this by the circuit that holds grid module inside.
In addition, the present invention does not have linear movement pick-up, its circuit master control borad is integrated power management module and functional module, power management module comprises voltage stabilizing/partial pressure unit and battery electric quantity monitoring unit, functional module comprises pulse signal processing unit, CPU element and radio frequency unit.
Complete in order to make the present invention not have the housing seal of linear movement pick-up, be provided with front shroud in the front of above-mentioned housing, also be provided with back shroud at the back side of housing, front shroud and back shroud are all detachable and install.In addition, be provided with forward and backward O-ring seal at the bayonet socket position of forward and backward cover plate and housing respectively, and paste one deck waterproof membrane, can make no linear movement pick-up reach the excellent waterproof effect on the surface of front shroud.
Since hold grid module integrated zero setting button, metric and English switching button and indicator gate, therefore on front shroud, leave corresponding position, make above-mentioned button and indicator gate be convenient to manual operation and data are observed.
In addition, the present invention does not have the linear movement pick-up housing and also is provided with two mounting holes, is used for no linear movement pick-up is fixed.
The present invention does not have linear movement pick-up compared with prior art, has following advantage:
1, no linear movement pick-up data-interface is a wireless communication mode, the design of hardware using radio circuit, and software need not by interface unit plug connected mode, and data is directly transferred to data processing equipment by wireless mode based on the wireless telecommunications work schedule.
2, no linear movement pick-up adopts rechargeable battery easy to carry as working power, and battery design realizes that fully external wirelessization and equipment are integrated in no linear movement pick-up; Simultaneously, can effectively reduce energy loss, prolong the service time of battery.
3, can design team's fidonetFido, realize the function of no linear movement pick-up as sensor node in the wireless sensor network, a plurality of no linear movement pick-ups can be distributed in each measurement point in the effective communication distance range, promptly can finish alternately, set up into radio sensing network with main frame.
Description of drawings
The present invention of being shown in Figure 1 does not have the structure of linear movement pick-up and forms synoptic diagram.
The present invention of being shown in Figure 2 does not have the plan structure synoptic diagram of linear movement pick-up.
The present invention of being shown in Figure 3 does not have the structural representation of looking up that linear movement pick-up is removed back shroud.
The present invention of being shown in Figure 4 does not have the internal circuit of linear movement pick-up and forms schematic block diagram.
The present invention of being shown in Figure 5 does not have the networking work synoptic diagram of linear movement pick-up.
Among the accompanying drawing 1-3, the 1-housing, 2-holds grid module, 3-circuit master control borad, 4-rechargeable battery, 5-front shroud, O-ring seal before the 6-back shroud, 7-, O-ring seal behind the 8-, the 9-antenna, 10-working station indicator, 11-measuring staff, the 12-gauge head, 13-mounting hole, 14-zero setting button, 15-metric and English switching button, 16-indicator gate, 17-limited post.
Embodiment
For the ease of it will be appreciated by those skilled in the art that the present invention is described in further detail below in conjunction with accompanying drawing.
Among Fig. 1, no linear movement pick-up comprises housing 1, and its basic composition has front shroud 5, and preceding O-ring seal 7 holds grid module 2, back O-ring seal 8, circuit master control borad 3, rechargeable battery 4, back shroud 6, antenna 9, working station indicator 10, measuring staff 11 and gauge head 12.
Among Fig. 2, hold grid module 2 integrated zero setting button 14, metric and English switching button 15 and indicator gate 16, therefore on front shroud 5, left corresponding position, make it make things convenient for manually-operated and data to observe.
Among Fig. 3, circuit master control borad 3 is fixing spacing in housing 1 inner chamber by limited post 17, and rechargeable battery 4 is by the device connection in succession of the contact on the circuit master control borad 3.In addition, be provided with back O-ring seal 8 at the bayonet socket position of back shroud 6 and housing 1, make it have good sealing and water resistance.
In addition, also be provided with two mounting holes 13, be used for no linear movement pick-up is fixed at housing 1.
The present invention does not have linear movement pick-up, the bayonet socket position of front shroud 5 and housing 1 is provided with preceding O-ring seal 7, at improving the design of front shroud 5 sealings and water proofing property, front shroud 5, back shroud 6 all can be dismantled and be installed easily, so that circuit master control borad 3 hardware and softwares upgrade, and the replacing of rechargeable battery 4; Rechargeable battery 4 guarantees each electronic devices and components electricity consumption requirement for no linear movement pick-up provides power supply; Antenna 9 is used for wireless communication function; Working station indicator 10 is used to indicate current wireless displacement transducer duty; Gauge head 12 is used for contacting with measured object, and when testee moved, measuring staff 11 held grid module 2 inductive displacement signals along with gauge head 12 moves, and showed current shift value at indicator gate 16, produced corresponding with it pulse signal simultaneously.
Among Fig. 4, the present invention does not have internal electrical routing circuit master control borad, appearance grid module and the corresponding signal lines of linear movement pick-up and forms, wherein circuit master control borad integrated power supply administration module and functional module, power management module is made up of voltage stabilizing/partial pressure unit and battery electric quantity monitoring unit, functional module is by the pulse signal processing unit, and CPU element and radio frequency unit are formed.
The present invention does not have linear movement pick-up and selects chargeable Li battery; selected Li cell voltage characteristic is: voltage was 4.2V when battery electric quantity was sufficient; along with the use of battery, voltage is reduced to 3.8V very soon, and 3.8V is the platform voltage of this selected Li battery; 80% of battery electric quantity concentrates on the platform voltage place; along with the continuation of battery is used, voltage consumption is to 3.8V when following, and the phenomenon that descends rapidly will appear in battery electric quantity; until the protection of battery over-discharge can, promptly this moment, the Li cell output voltage was 0V.According to the voltage characteristic of selected Li battery, the current battery electric quantity of monitoring of the present invention's design is realized by monitoring this Li cell output voltage.
Rechargeable battery is connected to voltage stabilizing/partial pressure unit, through voltage stabilizing partial pressure unit generation-1.5V and 3.3V voltage, generate-1.5V voltage is used to hold the power demands of grid module, and the 3.3V voltage of generation is used for the power demands of CPU element, radio frequency unit and pulse signal processing unit.
Rechargeable battery is connected to the battery electric quantity monitoring unit, the battery electric quantity monitoring unit that the present invention does not have linear movement pick-up is provided with the standard of 3.4V voltage for monitoring, when rechargeable battery voltage during greater than 3.4V, the battery electric quantity monitoring unit is output as 3.3V, otherwise the battery electric quantity monitoring unit is output as 0V.The battery electric quantity monitoring unit outputs signal to CPU element, by the level Control work status indicator lamp of CPU element according to the output of battery electric quantity monitoring unit.The above-mentioned standard of selecting 3.4V voltage as monitoring for use is to obtain according to analysis of experimental data, when the Li cell voltage reduces to 3.4V,, can also work 2 hours if continue to use, and Li battery discharge protection afterwards, output voltage is 0V.
Through the voltage stabilizing partial pressure unit generate-1.5V voltage inputs to the appearance grid module, the clock pulse signal and the data pulse signal that hold grid module output HIGH voltage 0V, low-voltage-1.5V, pulse signal inputs to the pulse signal processing unit, through the pulse signal processing unit clock pulse signal and data pulse signal are amplified and the pulse signal that oppositely generates same frequency high level 3.3V, low level 0V, and be sent to CPU element, finish the collection of signal by CPU element.
Radio frequency unit is made up of wireless telecommunications chip, external crystal oscillator, inductance, electric capacity and antenna, receiver, power amplifier, crystal oscillator and the regulator of wherein the wireless telecommunications chip is integrated frequency debugger, band detuner.
Radio frequency unit is connected to CPU element, CPU element is programmed to radio frequency unit by the SPI interface and is disposed, the integrated crystal oscillator of wireless telecommunications chip produces the high frequency oscillation signal, CPU element sends to wireless communication chips with data message to be sent by the SPI interface, wireless communication chips utilizes this high frequency oscillation signal to generate the microwave signal of additional data information, behind the filtering circuit via inductance and electric capacity composition, send to antenna, and go out by aerial radiation.
When no linear movement pick-up uses as terminal node in the network structure, its function is realized by the programming of the CPU element on the master control borad, by programming has sensor unique ID number to CPU element, and programming drives radio circuit to CPU element, finish to main frame and send information, and reception is sent information from main frame.This no linear movement pick-up sends the networking request have self ID number to main frame, waits for the main frame feedback information after sending, and agrees this sensor networking information if main frame is sent, and then this sensor adds network communication pattern; Do not allow the request of networking or send this no linear movement pick-up networking solicited message of refusal if main frame is sent, this sensor continues to send the request of networking to main frame, till main frame allows this no linear movement pick-up to network.
Among Fig. 5, the present invention does not have linear movement pick-up networking work, and details are as follows:
S1: whether no linear movement pick-up at first detects self battery electric quantity sufficient, if sufficient, carries out the S3 operation; Otherwise, carry out the S2 operation.
S2: pilot lamp constantly glimmers, and carries out the S1 operation.
S3: no linear movement pick-up sends the request of networking to main frame, carries out the S4 operation then.
S4: receive Host Command, carry out the S5 operation.
S5: judge whether main frame is agreed to network, network, carry out the S6 operation if main frame is agreed this no linear movement pick-up; Otherwise, carry out the S1 operation.
S6: whether no linear movement pick-up detection self battery electric quantity is sufficient, if sufficient, carries out the S8 operation; Otherwise, carry out the S7 operation.
S7: pilot lamp constantly glimmers, and carries out the S6 operation.
S8: no linear movement pick-up sends data to main frame, carries out the S9 operation then.
S9: confirm whether main frame receives the data that no linear movement pick-up sends,, carry out the S6 operation if receive; Otherwise, carry out the S1 operation.
Claims (3)
1. there is not linear movement pick-up, it comprises housing, one end installment work status indicator lamp of housing, the other end of housing is installed the gauge head of measuring staff, measuring staff end, it is characterized in that, one end of housing installment work status indicator lamp is also installed an antenna, is provided with the circuit master control borad in the housing inner chamber, holds grid module and rechargeable battery; Described antenna is connected with the circuit master control borad by signal wire; Described rechargeable battery by the contact on the circuit master control borad in succession device be connected with the circuit master control borad; Described appearance grid module is to be connected with the circuit master control borad by signal wire, powers by rechargeable battery; Described circuit master control borad integrated power supply administration module and functional module, described power management module comprises voltage stabilizing/partial pressure unit and battery electric quantity monitoring unit, described functional module comprises pulse signal processing unit, CPU element and radio frequency unit.
2. no linear movement pick-up according to claim 1 is characterized in that, described working station indicator is connected with the circuit master control borad by signal wire, and the moving grid surface of pasting on the fixed grid of described appearance grid module and the measuring staff contacts.
3. no linear movement pick-up according to claim 1 is characterized in that, described circuit master control borad and appearance grid module are all fixing spacing in the housing inner chamber by limited post.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 201010573251 CN102032860A (en) | 2010-12-06 | 2010-12-06 | Wireless displacement sensor |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 201010573251 CN102032860A (en) | 2010-12-06 | 2010-12-06 | Wireless displacement sensor |
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| CN102032860A true CN102032860A (en) | 2011-04-27 |
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| CN 201010573251 Pending CN102032860A (en) | 2010-12-06 | 2010-12-06 | Wireless displacement sensor |
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Cited By (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103353273A (en) * | 2013-07-10 | 2013-10-16 | 中国科学院理化技术研究所 | Portable displacement meter for measuring 0.1-2000 micrometers |
| CN104358589A (en) * | 2014-11-25 | 2015-02-18 | 山东中煤电器有限公司 | Wireless sensing device powered by mine power source |
| CN105030242A (en) * | 2015-03-24 | 2015-11-11 | 上海浦灵生物科技有限公司 | Apparatus for measuring perimeter of end of human and animal limb |
| CN107816934A (en) * | 2017-12-04 | 2018-03-20 | 中国南方电网有限责任公司超高压输电公司昆明局 | A kind of breaker hydraulic disk spring mechanism disc spring decrement self-operated measuring unit |
| CN112033285A (en) * | 2020-07-17 | 2020-12-04 | 中煤科工开采研究院有限公司 | Roadway section displacement measuring system and measuring method |
Citations (5)
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| DE20118622U1 (en) * | 2001-11-15 | 2003-03-27 | ELGO-Electric GmbH, 78239 Rielasingen-Worblingen | Position detector e.g. for contouring of chipboard has measuring slider with electronic evaluation unit connected wirelessly to stationary control unit |
| JP2008221377A (en) * | 2007-03-12 | 2008-09-25 | Koyo Electronics Ind Co Ltd | Radio control device for work machining position and radio proximity sensor used for the radio control device |
| CN201297922Y (en) * | 2008-12-10 | 2009-08-26 | 清远市科佳测控科技有限公司 | Integrated capacitive-gate displacement sensor |
| CN201364131Y (en) * | 2009-02-03 | 2009-12-16 | 韩韬 | Electronic digital display indicator with data processing and wireless transmission functions |
| CN201867168U (en) * | 2010-12-06 | 2011-06-15 | 安徽省建设工程勘察设计院 | Wireless displacement sensor |
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2010
- 2010-12-06 CN CN 201010573251 patent/CN102032860A/en active Pending
Patent Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| DE20118622U1 (en) * | 2001-11-15 | 2003-03-27 | ELGO-Electric GmbH, 78239 Rielasingen-Worblingen | Position detector e.g. for contouring of chipboard has measuring slider with electronic evaluation unit connected wirelessly to stationary control unit |
| JP2008221377A (en) * | 2007-03-12 | 2008-09-25 | Koyo Electronics Ind Co Ltd | Radio control device for work machining position and radio proximity sensor used for the radio control device |
| CN201297922Y (en) * | 2008-12-10 | 2009-08-26 | 清远市科佳测控科技有限公司 | Integrated capacitive-gate displacement sensor |
| CN201364131Y (en) * | 2009-02-03 | 2009-12-16 | 韩韬 | Electronic digital display indicator with data processing and wireless transmission functions |
| CN201867168U (en) * | 2010-12-06 | 2011-06-15 | 安徽省建设工程勘察设计院 | Wireless displacement sensor |
Cited By (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103353273A (en) * | 2013-07-10 | 2013-10-16 | 中国科学院理化技术研究所 | Portable displacement meter for measuring 0.1-2000 micrometers |
| CN104358589A (en) * | 2014-11-25 | 2015-02-18 | 山东中煤电器有限公司 | Wireless sensing device powered by mine power source |
| CN105030242A (en) * | 2015-03-24 | 2015-11-11 | 上海浦灵生物科技有限公司 | Apparatus for measuring perimeter of end of human and animal limb |
| CN107816934A (en) * | 2017-12-04 | 2018-03-20 | 中国南方电网有限责任公司超高压输电公司昆明局 | A kind of breaker hydraulic disk spring mechanism disc spring decrement self-operated measuring unit |
| CN107816934B (en) * | 2017-12-04 | 2024-04-09 | 中国南方电网有限责任公司超高压输电公司昆明局 | Automatic measuring device for disc spring compression amount of hydraulic disc spring mechanism of circuit breaker |
| CN112033285A (en) * | 2020-07-17 | 2020-12-04 | 中煤科工开采研究院有限公司 | Roadway section displacement measuring system and measuring method |
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Application publication date: 20110427 |