CN201867168U - Wireless displacement sensor - Google Patents
Wireless displacement sensor Download PDFInfo
- Publication number
- CN201867168U CN201867168U CN201020641816XU CN201020641816U CN201867168U CN 201867168 U CN201867168 U CN 201867168U CN 201020641816X U CN201020641816X U CN 201020641816XU CN 201020641816 U CN201020641816 U CN 201020641816U CN 201867168 U CN201867168 U CN 201867168U
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- master control
- control borad
- linear movement
- circuit master
- rechargeable battery
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Abstract
The utility model discloses a wireless displacement sensor. The wireless displacement sensor comprises a casing, wherein a work state indication lamp is mounted on one end of the casing; and a measurement rod and a probe on the end of the measurement rod are mounted on the other end of the casing. The wireless displacement sensor is characterized in that an antenna is also mounted on the end of the casing, where the work state indication lamp is mounted; a circuit main control board, a capacitive-gate module and a rechargeable battery are arranged in the inner cavity of the casing; the antenna is connected with the circuit main control board through a signal line; the rechargeable battery is connected with the circuit main control board through a contact connector on the circuit main control board; the capacitive-gate module is connected with the circuit main control board through the signal line, and is powered by the rechargeable battery; the circuit main control board is integrated with a power management module and a function module; the power management module includes a voltage stabilizing/dividing unit and a battery capacity monitoring unit; and the function module includes a pulse signal processing unit, a CPU (central processing unit) and an RF (radio frequency) unit. The wireless displacement sensor adopts the rechargeable battery with the good portability as the work power, and the battery is arranged in the casing, thereby achieving the external wireless and integration.
Description
Technical field
The utility model 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.
The utility model content
In order to solve the problems of the technologies described above, the utility model 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 adopted in the utility model 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 utility model 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 utility model 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 utility model 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 utility model 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
Shown in Figure 1 is the structure composition synoptic diagram that the utility model does not have linear movement pick-up.
Shown in Figure 2 is the plan structure synoptic diagram that the utility model does not have linear movement pick-up.
Shown in Figure 3 is that the utility model does not have the structural representation of looking up that linear movement pick-up is removed back shroud.
Shown in Figure 4 is the internal circuit composition schematic block diagram that the utility model does not have linear movement pick-up.
Shown in Figure 5 is the networking work synoptic diagram that the utility model does not have 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 utility model 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 utility model 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 utility model 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 utility model 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; use along with battery; voltage is reduced to 3.8V very soon; 3.8V be 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; the phenomenon of decline 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 utility model 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 utility model 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 utility model 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 |
|---|---|---|---|
| CN201020641816XU CN201867168U (en) | 2010-12-06 | 2010-12-06 | Wireless displacement sensor |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201020641816XU CN201867168U (en) | 2010-12-06 | 2010-12-06 | Wireless displacement sensor |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN201867168U true CN201867168U (en) | 2011-06-15 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201020641816XU Expired - Lifetime CN201867168U (en) | 2010-12-06 | 2010-12-06 | Wireless displacement sensor |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN201867168U (en) |
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102032860A (en) * | 2010-12-06 | 2011-04-27 | 安徽省建设工程勘察设计院 | Wireless displacement sensor |
| CN107976913A (en) * | 2017-12-25 | 2018-05-01 | 青岛聚力科创信息技术有限公司 | A kind of multifunctional intellectual lock |
| CN108362206A (en) * | 2018-02-13 | 2018-08-03 | 江门市银象科技有限公司 | A kind of non-contact displacement transducer based on capacitive grating |
| CN110017760A (en) * | 2019-04-15 | 2019-07-16 | 同济大学 | Passive and wireless displacement sensor and displacement sensing system based on helical antenna |
-
2010
- 2010-12-06 CN CN201020641816XU patent/CN201867168U/en not_active Expired - Lifetime
Cited By (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102032860A (en) * | 2010-12-06 | 2011-04-27 | 安徽省建设工程勘察设计院 | Wireless displacement sensor |
| CN107976913A (en) * | 2017-12-25 | 2018-05-01 | 青岛聚力科创信息技术有限公司 | A kind of multifunctional intellectual lock |
| CN108362206A (en) * | 2018-02-13 | 2018-08-03 | 江门市银象科技有限公司 | A kind of non-contact displacement transducer based on capacitive grating |
| CN108362206B (en) * | 2018-02-13 | 2024-04-09 | 哈工科讯(沈阳)工业技术研究院有限公司 | Non-contact displacement sensor based on capacitive grating |
| CN110017760A (en) * | 2019-04-15 | 2019-07-16 | 同济大学 | Passive and wireless displacement sensor and displacement sensing system based on helical antenna |
| CN110017760B (en) * | 2019-04-15 | 2024-05-10 | 同济大学 | Passive wireless displacement sensor and displacement sensing system based on spiral antenna |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| C56 | Change in the name or address of the patentee |
Owner name: ANHUI URBAN CONSTRUCTION DESIGN + RESEARCH INSTITU Free format text: FORMER NAME: ANHUI GEOTECHNIAL NVESTTGAHON + ARCHITECTURAL DESIGN INSTITUTE |
|
| CP03 | Change of name, title or address |
Address after: Beijing Road West Renmin Street North Baohe Industrial District of Hefei City, Anhui province 230001 Patentee after: Anhui Urban Construction Design & Research Institute Address before: 230001 No. 28 South Road, Luyang District, Anhui, Hefei Patentee before: Anhui Geotechnial Nvesttgahon & Architectural Design Institute |
|
| C56 | Change in the name or address of the patentee |
Owner name: ANHUI URBAN CONSTRUCTION DESIGN + RESEARCH GENERAL Free format text: FORMER NAME: ANHUI URBAN CONSTRUCTION DESIGN + RESEARCH INSTITUTE |
|
| CP03 | Change of name, title or address |
Address after: No. 9 garden road in Hefei City Baohe District of Anhui province 230001 Patentee after: ANHUI URBAN CONSTRUCTION DESIGN INSTITUTE CO., LTD. Address before: Beijing Road West Renmin Street North Baohe Industrial District of Hefei City, Anhui province 230001 Patentee before: Anhui Urban Construction Design & Research Institute |
|
| CP01 | Change in the name or title of a patent holder |
Address after: No. 9 garden road in Hefei City Baohe District of Anhui province 230001 Patentee after: Anhui Urban Construction Design Research Institute Limited by Share Ltd Address before: No. 9 garden road in Hefei City Baohe District of Anhui province 230001 Patentee before: ANHUI URBAN CONSTRUCTION DESIGN INSTITUTE CO., LTD. |
|
| CP01 | Change in the name or title of a patent holder | ||
| CX01 | Expiry of patent term |
Granted publication date: 20110615 |
|
| CX01 | Expiry of patent term |