CN102507729A - Wireless detection system and method of non-contact wire rope - Google Patents
Wireless detection system and method of non-contact wire rope Download PDFInfo
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- CN102507729A CN102507729A CN2011103448336A CN201110344833A CN102507729A CN 102507729 A CN102507729 A CN 102507729A CN 2011103448336 A CN2011103448336 A CN 2011103448336A CN 201110344833 A CN201110344833 A CN 201110344833A CN 102507729 A CN102507729 A CN 102507729A
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Abstract
The invention discloses a wireless detection system of a non-contact wire rope. The wireless detection system comprises a sensor detection processing unit, a wireless RF (radio frequency) transceiver module, a power management module, an impedance matching circuit and an SMA (Sub-Miniature-A) antenna. The wireless detection system is characterized in that the sensor detection processing unit detects the wire rope in real time, collects and processes the detected signal, transmits the processed data to the wireless radio frequency transceiver module and then transmits the processed data to the SMA antenna through an impedance circuit matched with the SMA antenna for carrying out wireless transmission. The power management module supplies electricity to each power unit. The invention further discloses a wireless detection method of the non-contact wire rope. The detection system and the detection method, disclosed by the invention, have the advantages of rational design, simple wiring, convenience in installation, small volume of a circuit board, light weight, good use effect and high practical value; by adopting a wireless manner, complexity of a node device in a network can be reduced; and the used power management module has the advantages of rational design and reliable performance.
Description
Technical field
The invention belongs to the wireless sensor network technology field, relate in particular to a kind of contactless wire rope wireless detecting system and method.
Background technology
Skyscraper all over the world is more and more, and high-altitude glass curtain wall friction scrubbing apparatus more and more receives people's attention, and window cleaning equipment also just arises at the historic moment.Window cleaning equipment belongs to the aerial suspension Work machine, and the main connected mode of hanging ship and hitch of window cleaning equipment is through wire rope.Wire rope is as the core component and the high-risk member of window cleaning equipment, and its security receives much concern.In order to ensure the safe and reliable operation of window cleaning equipment, particularly important to the detection of wire rope security situation.
Yet up to the present; Detection to wire rope all is regularly to detect to the big machinery of working environment complicacy with instrument and equipment through the experimenter; Tester's work is dangerous and loaded down with trivial details; And the data that obtain are the situation of our selected time point, and whole plant equipment duty for a long time can not be described fully.And can't detect the malfunction of mechanical system point for a long time, can't remind the staff to safeguard in the very first time that structure possibly be in the dangerous work state.
Summary of the invention
In order to overcome detection difficult, the invention provides the node that a kind of ability real-time online steady in a long-term detects wire rope " health status ", particularly a kind of non-contact type wireless detection system and method to wire rope.
The invention discloses a kind of contactless wire rope wireless detecting system, comprise sensor processing unit, radio transceiver unit, power management module, impedance matching circuit and SMA antenna; Said sensor processing unit detects wire rope in real time; Detected signal is gathered and handled, and the data after the processing are sent to the radio transceiver unit, through the impedance circuit that is complementary with the SMA antenna; Be delivered to the SMA antenna again, carry out wireless transmission.Power management module is supplied power for each power unit.
Further, described sensor processing unit adopts contactless magnetoelectricity detecting sensor, and this magnetoelectricity detecting sensor is fixed on the reliable apparatus, and wire rope is contactless to be passed in the middle of sensor.
Further, described magnetoelectricity detecting sensor reaches capacity through permanent-magnet steel axle degree of depth magnetization wire rope, detects the fracture of wire and the wearing and tearing of wire rope according to stray field and flux change.
Further, comprising: according to wire rope stray field and flux change, after the magnetic signal of spatial diffusion gathers; Convert voltage change to by array wide-angle Hall element group; Pass through the A/D interface again, carry out analog to digital conversion, give the radio transceiver unit with digital data transmission at last.
Further; The host-host protocol according to IEEE802.15.4 is selected in described radio transceiver unit; With packing data; Adopt the networking of ZigBee technology, through radiowave data are passed to another radio receiving transmitting module from a radio receiving transmitting module with the mode of relay, data pass to on-the-spot base station the most at last.
Further, said radio transceiver unit master chip employing chip CC2530; The work clock of chip CC2530 can be chosen modes such as external crystal-controlled oscillation, outside RC oscillator, inner RC oscillator, internal clocking power supply.
Further, the work clock of chip CC2530 adopts two external crystal-controlled oscillation: the 32MHz crystal oscillator is as system clock, for chip RF transceiver local oscillation signal and MCU local oscillation signal are provided; 32.768KHz crystal oscillator, provides park mode timer local oscillation signal as real-time clock.
Further, described power management module is made up of supply module and the power supply voltage stabilizing chip that is connected with supply module, is used for power supplies such as radio transceiver unit, sensor processing unit and uses.
Further, described power management module is supplied to use by the stable DC voltage of 5V supply module through chip SE1117 step-down output 3.3V.
The present invention also discloses a kind of contactless wire rope method for wirelessly testing; The sensor processing unit detects wire rope in real time; Detected signal is gathered and handled, and the data after the processing are sent to the radio transceiver unit, through the impedance circuit that is complementary with the SMA antenna; Be delivered to the SMA antenna again, carry out wireless transmission.Power management module is used to each power unit and supplies power.
Further; Said sensor processing unit adopts contactless magnetoelectricity detecting sensor to detect; Described magnetoelectricity detecting sensor reaches capacity through permanent-magnet steel axle degree of depth magnetization wire rope, detects the fracture of wire and the wearing and tearing of wire rope according to stray field and flux change.
Further, comprising: according to wire rope stray field and flux change, after the magnetic signal of spatial diffusion gathers; Convert voltage change to by array wide-angle Hall element group; Pass through the A/D interface again, carry out analog to digital conversion, give the radio transceiver unit with digital data transmission at last.
Further; The host-host protocol according to IEEE802.15.4 is selected in described radio transceiver unit; With packing data; Adopt the networking of ZigBee technology, through radiowave data are passed to another radio receiving transmitting module from a radio receiving transmitting module with the mode of relay, data pass to on-the-spot base station the most at last.
Further, said radio transceiver unit master chip employing chip CC2530; The work clock of chip CC2530 can be chosen modes such as external crystal-controlled oscillation, outside RC oscillator, inner RC oscillator, internal clocking power supply.
Used radio transceiver unit is that CC2530 is the radio transceiver chip compatible with ZigBee/IEEE802.15.4; Integrated 51 single-chip microcomputer kernels; It is operated in the 2.4GHz ISM band, has the link budget of 104dB, the receiving sensitivity of-101dB and the through-put power of 4.5dBm; Thereby reduced required number of node equipment in the network, reduced the cost of 802.15.4 system group network to a great extent.
Further, the work clock of chip CC2530 adopts two external crystal-controlled oscillation: the 32MHz crystal oscillator is as system clock, for chip RF transceiver local oscillation signal and MCU local oscillation signal are provided; 32.768KHz crystal oscillator, provides park mode timer local oscillation signal as real-time clock.
Further, described power management module is made up of supply module and the power supply voltage stabilizing chip that is connected with supply module, is used for power supplies such as radio transceiver unit, sensor processing unit and uses.
Reasonable in design and the dependable performance of used power management module adopts Switching Power Supply to supply power, because the inner key element of Switching Power Supply is operated in the HF switch state, the energy that itself consumes is lower, and switch power efficiency is very high; And adopt battery and adapter power supply mode, safe and reliable and good practical effect.
Further, described power management module is supplied to use by the stable DC voltage of 5V supply module through chip SE1117 step-down output 3.3V.
Beneficial effect of the present invention: disclosed a kind of contactless wire rope wireless detecting system of the present invention and method; Detect " health status " of wire rope in real time through wireless network; Adopt such form to make things convenient for the testing staff on the main control computer of main control room, directly to obtain the detailed data of physical construction duty, grasp mechanical duty at any time.Circuit design of the present invention is reasonable, and wiring is simple, volume is little, in light weight, easy for installation and each component capabilities is good, result of use good, practical value is high, can combine actual dealing with problems.
Description of drawings
According to embodiment and accompanying drawing the present invention is done further explain below.
Fig. 1 is the structured flowchart of the contactless wire rope wireless detecting system of the present invention.
1-sensor processing unit 2-radio transceiver unit 3-power management module
4-impedance matching circuit 5-SMA antenna
Embodiment
Fig. 1 is the structured flowchart of the contactless wire rope wireless detecting system of the present invention; As shown in Figure 1; The present invention comprises the sensor processing unit 1 of the magnetoelectric sensor composition that wire rope is detected in real time, also the signal that collects is handled in the sensor processing unit 1, and the digital data transmission after the processing is in unlimited Transmit Receive Unit 2; Pack to the received signal in radio transceiver unit 2; Impedance circuit 4 through being complementary with SMA antenna 5 is delivered to SMA antenna 5 again, carries out wireless transmission.And be the power management module 3 of each power unit power supply.
Said sensor processing unit 1 adopts contactless magnetoelectricity detecting sensor, and this magnetoelectricity detecting sensor is fixed on the reliable apparatus, and wire rope passes in the middle of sensor, but does not contact.Said magnetoelectricity detecting sensor is carried out degree of depth magnetization through the permanent-magnet steel axle with wire rope and is reached capacity; Defective synchronized generation stray field and flux change such as the fracture of wire of wire rope, wearing and tearing; After the magnetic signal of spatial diffusion gathers, convert voltage change to by array wide-angle Hall element group, pass through the A/D interface again; Carry out analog to digital conversion, give radio transceiver unit 2 with digital data transmission at last.
Described radio transceiver unit 2 is according to the host-host protocol of IEEE802.15.4; With packing data; Adopt the networking of ZigBee technology, through radiowave data are passed to another radio receiving transmitting module from a radio receiving transmitting module with the mode of relay, data pass to on-the-spot base station the most at last.
ZigBee is based on the technical standard of relevant networking, safety and the application software aspect of the development of IEEE802.15.4 wireless standard.Be characterized in closely, low complex degree, self-organization, low-power consumption, low data rate, low cost.It will be the preferably selection of wireless sensor network for the decision of the technical characteristic of ZigBee, be widely used in Internet of Things, control automatically and numerous areas such as supervision.Wherein, be that the Zigbee SOC solution of representative is widely used than numerous Zigbee chips with the U.S.'s CC2430/CC2530 of Ti company chip.CC2530 is the radio transceiver chip compatible with ZigBee/IEEE802.15.4; Integrated 51 single-chip microcomputer kernels; It is operated in the 2.4GHz ISM band, has the link budget of 104dB, the receiving sensitivity of-101dB and the through-put power of 4.5dBm; Thereby reduced required number of node equipment in the network, reduced the cost of 802.15.4 system group network to a great extent.
Radio transceiver according to the invention unit 2 master chips adopt CC2530, accomplish radio transmission-receiving function in conjunction with external circuits 2.4G plastic rod antenna, balun circuit, 10 core downloaders etc.Radio transceiver unit 2 is that the digital signal that sensor processing unit 1 transmits is packed; Again through being wirelessly transmitted to coordinator node; Coordinator node is exactly the terminal point of wireless transmission, and the terminal of each Radio Transmission Node directly links to each other with computer.
Described impedance matching circuit 4 is to be realized by balun circuit (BALUN, i.e. balanced feed converter or equalizer circuit), is connected each other and is composed in parallel by capacitor and inductor.Balun circuit is under the TX pattern, is combined into a single-ended RF signal to the output of two difference RF pins, transfers to SMA antenna 5, redispatches away; And the single-ended aerial signal that receives at following SMA antenna 5 of RX pattern is divided into a difference RF signal.
In the actual use, when adopting the power supply of 5V adapter, omitting the DC/DC converter, only need connect electric capacity to be used for+5V output get final product at power output end, step-down be input voltage 5V through voltage stabilizing chip SE1117+other consumers uses of DC voltage confession of 3.3V; When adopting powered battery accordingly, need to use the DC/DC converter.Used power management module 3 reasonable in design and dependable performances adopt Switching Power Supply to supply power, because the inner key element of Switching Power Supply is operated in the HF switch state, the energy that itself consumes is lower, and switch power efficiency is very high; And adopt battery and adapter power supply mode, safe and reliable and good practical effect.
When power management module 3 is carried out practical wiring, the size actual according to printed wiring board, overstriking power lead width reduces loop resitance as far as possible.Simultaneously, make the direction of trend and data transfer of power lead, ground wire consistent, help to strengthen noise resisting ability like this.Simultaneously, should note: will be digitally with simulation ground separately, if existing logical circuit has linear circuit again on the wiring board, should make them as far as possible separately.The ground of low-frequency channel should adopt single-point parallel connection ground connection, parallelly connected again ground connection after can partly connecting when practical wiring is had any problem as far as possible.High-frequency circuit should adopt multiple spot series connection ground connection, and ground wire should be lacked and thick, and high-frequency component is tried one's best with the paper tinsel in large area of lattice-shaped on every side.The ground wire overstriking of should trying one's best, if ground wire is with very thin lines, then earthing potential changes with change in current, makes noiseproof feature reduce.Therefore should be with the ground wire overstriking, make it can be through being three times in the permission electric current in the printed board.As possible, the length of ground wire should be more than 2-3mm.Ground wire constitutes closed-loop.The printed board that only is made up of digital circuit, its grounding circuit cloth become the big multipotency of closed-loop to improve noise resisting ability.
Said CC2530 packing forms is to adopt 40 pins, the QFN encapsulation of 6mm * 6mm size.CC2530 integrates radio-frequency receiving-transmitting and MCU control function, and peripheral cell comprises the crystal oscillator of a 32MHz and crystal oscillator and some other capacitance resistance wares of a 32.768KHz.Adopt SMA antenna 5 and the design of Ba Lun match circuit, can descend according to circumstances open, communication distance can reach 600m.
Through above-mentioned enforcement, can very clear understanding technical scheme of the present invention.Though the present invention will be described with reference to embodiment more than should be noted that, this does not mean it is limitation of the present invention, and protection scope of the present invention is limited accompanying claims rather than embodiment.
Claims (10)
1. contactless wire rope wireless detecting system; Comprise sensor processing unit, radio transceiver unit, power management module, impedance matching circuit and SMA antenna, it is characterized in that: said sensor processing unit detects wire rope in real time, and detected signal is gathered and handled; Data after the processing are sent to the radio transceiver unit; Impedance circuit through being complementary with the SMA antenna is delivered to the SMA antenna again, carries out wireless transmission.Power management module is supplied power for each power unit.
2. contactless wire rope wireless detecting system according to claim 1; It is characterized in that: described sensor processing unit adopts contactless magnetoelectricity detecting sensor; This magnetoelectricity detecting sensor is fixed on the reliable apparatus, and wire rope is contactless to be passed in the middle of sensor.
3. contactless wire rope wireless detecting system according to claim 2; It is characterized in that: described magnetoelectricity detecting sensor reaches capacity through permanent-magnet steel axle degree of depth magnetization wire rope, according to wire rope stray field and flux change, after the magnetic signal of spatial diffusion gathers; Convert voltage change to by array wide-angle Hall element group; Pass through the A/D interface again, carry out analog to digital conversion, give the radio transceiver unit with digital data transmission at last.
4. according to the described contactless wire rope wireless detecting system of one of claim 1 to 3; It is characterized in that: the host-host protocol according to IEEE802.15.4 is selected in described radio transceiver unit; With packing data; Adopt the networking of ZigBee technology, through radiowave data are passed to another radio receiving transmitting module from a radio receiving transmitting module with the mode of relay, data pass to on-the-spot base station the most at last.
5. contactless wire rope wireless detecting system according to claim 4 is characterized in that: said radio transceiver unit master chip adopts chip CC2530; The work clock of chip CC2530 adopts two external crystal-controlled oscillation: the 32MHz crystal oscillator is as system clock, for chip RF transceiver local oscillation signal and MCU local oscillation signal are provided; 32.768KHz crystal oscillator, provides park mode timer local oscillation signal as real-time clock.
6. according to the described contactless wire rope wireless detecting system of one of claim 1 to 5; It is characterized in that: described power management module is made up of supply module and the power supply voltage stabilizing chip that is connected with supply module, is used for power supplies such as radio transceiver unit, sensor processing unit and uses; Described power management module is supplied to use by the stable DC voltage of 5V supply module through chip SE1117 step-down output 3.3V.
7. contactless wire rope method for wirelessly testing; It is characterized in that: utilize the sensor processing unit that wire rope is detected in real time; Detected signal is gathered and handled, and the data after the processing are sent to the radio transceiver unit, through the impedance circuit that is complementary with the SMA antenna; Be delivered to the SMA antenna again, carry out wireless transmission; Power management module is used to each power unit and supplies power.
8. contactless wire rope method for wirelessly testing according to claim 7; It is characterized in that: said sensor processing unit adopts contactless magnetoelectricity detecting sensor to detect; Described magnetoelectricity detecting sensor reaches capacity through permanent-magnet steel axle degree of depth magnetization wire rope, according to wire rope stray field and flux change, after the magnetic signal of spatial diffusion gathers; Convert voltage change to by array wide-angle Hall element group; Pass through the A/D interface again, carry out analog to digital conversion, give the radio transceiver unit with digital data transmission at last.
9. according to claim 7 or 8 described contactless wire rope method for wirelessly testing; It is characterized in that: the host-host protocol according to IEEE802.15.4 is selected in described radio transceiver unit; With packing data; Adopt the networking of ZigBee technology, through radiowave data are passed to another radio receiving transmitting module from a radio receiving transmitting module with the mode of relay, data pass to on-the-spot base station the most at last; Said radio transceiver unit master chip adopts chip CC2530; The work clock of chip CC2530 adopts two external crystal-controlled oscillation: the 32MHz crystal oscillator is as system clock, for chip RF transceiver local oscillation signal and MCU local oscillation signal are provided; 32.768KHz crystal oscillator, provides park mode timer local oscillation signal as real-time clock.
10. according to the described contactless wire rope method for wirelessly testing of one of claim 7 to 9; It is characterized in that: described power management module is made up of supply module and the power supply voltage stabilizing chip that is connected with supply module, is used for power supplies such as radio transceiver unit, sensor processing unit and uses; Described power management module is supplied to use by the stable DC voltage of 5V supply module through chip SE1117 step-down output 3.3V.
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Cited By (7)
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| CN102879460A (en) * | 2012-09-18 | 2013-01-16 | 江苏申锡建筑机械有限公司 | Defect detecting system for steel wire rope |
| CN105527338A (en) * | 2015-10-26 | 2016-04-27 | 华南理工大学 | Metal wire rope on-line monitoring method and device |
| CN106053591A (en) * | 2015-04-13 | 2016-10-26 | 法策股份公司钢丝绳厂 | Inspection and monitoring system for a cable railway, and method for operating the same |
| CN108918652A (en) * | 2018-07-13 | 2018-11-30 | 安徽吉乃尔电器科技有限公司 | A kind of detection device of haulage cable |
| CN108995659A (en) * | 2018-07-13 | 2018-12-14 | 安徽吉乃尔电器科技有限公司 | Suspension cable road conveying facility |
| CN109641720A (en) * | 2016-08-24 | 2019-04-16 | 因温特奥股份公司 | For determining the method and test device of the state of the suspension traction device of elevator system |
| CN112218449A (en) * | 2019-07-09 | 2021-01-12 | 梅州市鸿利线路板有限公司 | Double-sided circuit board processing technology |
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| Publication number | Priority date | Publication date | Assignee | Title |
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| CN102879460A (en) * | 2012-09-18 | 2013-01-16 | 江苏申锡建筑机械有限公司 | Defect detecting system for steel wire rope |
| CN102879460B (en) * | 2012-09-18 | 2015-11-25 | 江苏申锡建筑机械有限公司 | A kind of defect in rope detection system |
| CN106053591A (en) * | 2015-04-13 | 2016-10-26 | 法策股份公司钢丝绳厂 | Inspection and monitoring system for a cable railway, and method for operating the same |
| CN105527338A (en) * | 2015-10-26 | 2016-04-27 | 华南理工大学 | Metal wire rope on-line monitoring method and device |
| CN109641720A (en) * | 2016-08-24 | 2019-04-16 | 因温特奥股份公司 | For determining the method and test device of the state of the suspension traction device of elevator system |
| CN108918652A (en) * | 2018-07-13 | 2018-11-30 | 安徽吉乃尔电器科技有限公司 | A kind of detection device of haulage cable |
| CN108995659A (en) * | 2018-07-13 | 2018-12-14 | 安徽吉乃尔电器科技有限公司 | Suspension cable road conveying facility |
| CN112218449A (en) * | 2019-07-09 | 2021-01-12 | 梅州市鸿利线路板有限公司 | Double-sided circuit board processing technology |
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Application publication date: 20120620 |