CN102832568B - Current guiding device for live operation of distribution network with long-distance real-time monitor - Google Patents
Current guiding device for live operation of distribution network with long-distance real-time monitor Download PDFInfo
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- CN102832568B CN102832568B CN201210324848.0A CN201210324848A CN102832568B CN 102832568 B CN102832568 B CN 102832568B CN 201210324848 A CN201210324848 A CN 201210324848A CN 102832568 B CN102832568 B CN 102832568B
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Abstract
The invention relates to a mounting device for an overhead line or cable, in particular to a current guiding device for live operation of a distribution network with a long-distance real-time monitor, which is structurally characterized by comprising a pair of clamping devices, a high-voltage insulated connecting wire and a handheld monitor, wherein each clamping device comprises a movable jaw, a fixed jaw, a temperature sensor, a current sensor, a master control board and a current guiding connection device, each current guiding device is provided with the effective and reliable temperature sensor and current sensor for real-time collection of monitoring data, and the data are further wirelessly transmitted to the handheld monitor on the ground in a long-distance and real-time way within a controllable range for check of monitoring personnel, so that the monitoring personnel can promptly know the field construction situation, judgment can be made in a real-time way, correct prompts can be uttered in advance, the personal safety of operators can be guaranteed, the labor intensity can be lowered, the working pressure can be reduced, and the field construction safety of the live operation can be facilitated.
Description
Technical field
The present invention relates to a kind of erecting device for overhead transmission line or cable, particularly a kind of distribution network live line work drainage system with remote monitoring in real time.
Background technology
In prior art, most projects of live line working need to adopt circuit dividing technology, as on-load cut-offs disconnecting link, on-load migration circuit, on-load process defect etc., and the charged drainage technology scheme generally used of on-load divides two kinds: one is simple card line apparatus, it connects on the two ends in fault wire section, former wire is replaced to shunt, thus disengagement failure circuit can be realized, realize trouble hunting, the program needs nearly body erection joint, and not timing is carried out detecting to determine that drainage thread is safe and reliable to operation, be applicable to Single Point of Faliure and short haul circuits defect processing.Another kind is bypass operation flexible cable system, bypass operation system integrates the Novel distribution network repair apparatus of bypass flexible power cable, self-locking quick plug-in power cable connector, bypass load-switch, can complete distribution within the specific limits and not to have a power failure repairing, upkeep operation; Bypass mobile box substation emergency repair vehicle integrates all kinds of electric unit, bypass operation system and motor vehicles, the need of work of user's scheduled overhaul, emergency first-aid repair, temporary electricity and important place and major event reliable power supply can be met, be adapted to the migration of large-scale line bypass, the projects such as large-scale technological transformation.
In technique scheme, that any scheme all needs nearly body to operate fixture or joint, particularly in operation procedure process, before and after installation drainage thread, operating personnel is all needed to adopt the current data of manual clamp on amperemeter detection line, also needed to carry out same detection before and after dismounting lead-in wire, in addition, when staff's displacement under touching already installed lead-in wire situation, also duplicate detection to be carried out as required, like this in events in operation, need the current detecting of carrying out repeatedly, operating personnel operates very loaded down with trivial details, and in operation procedure, operating personnel is the operation of nearly body, also must visual observations may by loose contact nearby, external voltage, the drainage thread operation irregularity that current anomaly etc. cause, to carry out on-site supervision to the work of drainage thread.But in order to guarantee personal safety as much as possible and connection reliability, drainage thread part needs to carry out multi-insulation and covers, covering like this makes operating personnel be difficult to estimate, even cannot estimate, in order to monitor the work of drainage thread as much as possible, operating personnel needs as much as possible near drainage thread mounting points, thus causes potential safety hazard, causes Work tool damage or personnel too closely operate and cause personal safety accident.
In addition, temperature parameter under drainage thread operating state and current parameters are the key datas to drainage thread work monitoring, in abnormal cases, above-mentioned parameter can have greatly changed instantaneously, but existing drainage system is mainly by manually carrying out in-plant detection to above-mentioned data, be all timing or detect as required, cannot detect in real time, therefore cannot Timeliness coverage abnormal conditions, also operating personnel just cannot be reminded to carry out safe precaution measure in time, be difficult to evade the line construction potential safety hazard that may occur.
Further, on-the-spot care provider is remote monitoring, according to the detection data that operating personnel provides, confirms with care provider according to job step and concerns, just can carry out next step operation.This just exist care provider fail the very first time obtain monitor data, grasp condition of construction, also just cannot send correct prompting in time, increase the difficulty of monitoring.
Thus, operating personnel needs to keep enough safe distances to electrified body, to ensure in operating process that operation procedure is correct, action norm, otherwise the personal safety of operating personnel and the reliability service of distribution cannot be ensured, therefore higher requirement is proposed to operating personnel, bring larger operational pressure to operating personnel, be unfavorable for safety in production.On the other hand, fixture of the prior art or joint are because adopt open clamping scheme, or easy chucking device, or remote manual operation (such as adopting the transmission mechanism of insulating bar mating band screw rod), cause the connection reliability of itself and wire often can not ensure, and manual operation often to there is operating force uneven, direction of operating plays pendulum, if add fixture or adopt some linear contact lay to replace face contact and easily make wire in operation between joint with wire, or it is impaired in repeatable operation, increase the destabilizing factor that distribution runs.
Summary of the invention
The object of the invention is to overcome the deficiencies in the prior art part, and proposition one is monitored drainage procedure in real time, ensure operating personnel's personal safety, what reduce operational pressure has the remote real-time distribution network live line work drainage system monitored.
The present invention is achieved through the following channels:
There is the distribution network live line work drainage system of remote monitoring in real time, its structural feature is, include a pair clamping device, High-Voltage Insulation connecting line and hand-held monitoring device, wherein clamping device includes moving jaw, regular jaw, temperature sensor, current sensor, master control borad and flow inducing connecting device, regular jaw is fixedly connected with flow inducing connecting device, and moving jaw is then connected by adjustable connecting components with flow inducing connecting device; Temperature sensor is arranged on regular jaw, and current sensor is arranged on flow inducing connecting device; The two ends of High-Voltage Insulation connecting line are connected respectively to each clamping device;
Master control borad includes wireless communication unit, CPU and the temperature collection circuit and current collection circuit that are sequentially electrically connected, temperature sensor is connected with CPU by temperature collection circuit, and current sensor is connected with CPU by current collection circuit; Hand-held monitoring device include sequentially be electrically connected Wireless transceiver unit, data processing unit, key-press input unit and the display translation unit, the Wireless transceiver unit of hand-held monitoring device and the wireless communication unit wireless connections of master control borad that are connected with data processing unit.
Two clamping devices are clamped in respectively to be needed on two circuits of bypass drainage, and regular jaw, moving jaw and flow inducing connecting device are electric conductor, and the electric current on circuit carries out drainage by by the above-mentioned part of drainage system and High-Voltage Insulation connecting line.The heating situation of regular jaw mainly responded to by temperature sensor, and its heating situation can represent the connection state of clamping device and circuit, can detect the reliability of clamping; Current sensor mainly gathers the current data by drainage system, and these data can provide the situation of drainage system and connection to point out, the situation prompting that circuit can also be provided to run.The data gathered are by after the central processing unit for processing of master control borad, data are sent to hand-held monitoring device by wireless communication unit, hand-held monitoring device receives monitor data by Wireless transceiver unit, after data processing unit process, output to display translation unit, be supplied to care provider and check.Care provider can also by hand-held monitoring device input information to contact with master control borad.
Can provide reliable exactly because drainage system is most important, effective drainage scheme, to ensure line upkeep, normally the carrying out of maintenance, therefore this live line working requires to forbid to lose monitoring, otherwise will bring major accident.The invention provides a kind of scheme of on line real-time monitoring, drainage system arranges temperature sensor and current sensor effectively reliably, thus Real-time Collection monitor data, further by wireless transmissioning mode, data are real-time transmitted in controlled range the hand-held monitoring device on ground at a distance, check for care provider, make care provider can know on-the-spot condition of construction the very first time, and judge in real time, send correct prompting in advance, ensure the personal safety of operating personnel, reduce labour intensity, reduce its operational pressure, be conducive to live line working site operation safety.
The present invention can be specially further:
Clamping device also includes jacking mechanism, reducing motor and hook stick connecting portion, regular jaw is bridge like, its one end is fixedly connected with flow inducing connecting device, moving jaw is arranged on below regular jaw, its upper surface has the arcs of recesses symmetrical with regular jaw bridge like, moving jaw one end is connected with flow inducing connecting device by adjustable connecting components, the bottom of moving jaw is arranged on the top end face of jacking mechanism, the rotating shaft of reducing motor and this jacking mechanism are in transmission connection, master control borad also includes a motor-drive circuit, it is electrically connected with the start-up circuit of reducing motor, master control borad and supply unit thereof are arranged in a shielding box body be connected with reducing motor shell, the upper end of hook stick connecting portion is connected with the lower surface of this shielding box body.
During operation, regular jaw and moving jaw are separately, the clamping device being connected with High-Voltage Insulation connecting line only need be articulated on wire and (adopt the laggard line operate of insulated operating rod attended operation rod connecting portion) by operating personnel, now wire is positioned at the bridge like curved bottom of regular jaw, then Ground Operation personnel start to operate hand-held watch-dog, input close command by key-press input unit, after data processing unit process, send master control borad to via Wireless transceiver unit; After the wireless communication unit of master control borad receives signal, via CPU dissection process, then motor-drive circuit is sent to, motor-drive circuit sends the start-up circuit that triggering signal passes to reducing motor, thus startup reducing motor, reducing motor now rotates and drives jacking mechanism and moving jaw to move to regular jaw direction, until realize reliable retention to wire.When needing to withdraw, send instruction by hand-held monitoring device equally, trigger reducing motor by master control borad and rotate, drive jacking mechanism and moving jaw to move down, away from regular jaw, unclamp wire.
Like this, operate owing to adopting the clamping device of mode to drainage system of remote pilot, the operation of operating personnel is just reduced to and hangs up and take off clamping device, very simple and convenient in operation, even can not step on bar and just can realize operation, avoid operating personnel and bring a series of inconvenience and unsafe problems because of nearly body operation, it also avoid the operating reliability problem that remote manual operation brings simultaneously; Decrease the operational pressure of operating personnel, ensure safety in production; In addition, jacking mechanism is driven owing to have employed reducing motor, thus drive moving jaw and regular jaw with clamping wires further, reducing motor is a kind of micromachine, it can provide the transmission effect reducing speed gradually, ensure that moving jaw can move with gradually little speed forward when near regular jaw, realizes applying balanced clamping force to wire, the dynamics avoiding artificial force is uneven, the impaired problem of the biased wire caused in direction; The radian symmetrical structure of moving jaw and bridge like regular jaw can adapt to the surperficial radian of wire, and provides good face contact, to implement positive pressure to wire, solves the impaired problem of wire further.
The present invention can be specially further:
Jacking mechanism includes tight sleeve, holds out against spring, screw rod and hold out against nut, screw rod is connected with the rotating shaft of reducing motor, hold out against nut and be placed around screw rod periphery, and be connected with screw flight, hold out against spring to be positioned at and to hold out against above nut, and the inner chamber of tight sleeve under shed is arranged in together with the top shaft holding out against nut, the inner chamber internal diameter of tight sleeve coordinates with the crest clearance holding out against nut, and the top of tight sleeve is provided with moving jaw simultaneously.
When clamping wire, by hand-held monitoring device remote control trigger master control borad, start reducing motor, reducing motor drives bolt rotary, now hold out against nut under the rotary action of screw rod, start the rising of relative screw rod, and promote to hold out against spring and tight sleeve moves upward in uphill process, make moving jaw with the rising of tight sleeve near regular jaw, realize clamping the force gradually of wire.After moving jaw withstands wire, the reaction force of regular jaw and wire will be subject to, moving jaw is made to stop gradually rising, now hold out against nut head on hold out against spring continue rise, until reducing motor stops operating, now holding out against spring-compressed stress under the double action of the upper top active force of moving jaw and the deadweight pressing force of device, clamping device achieves the reliable retention to wire.
Above-mentioned jacking mechanism can be further:
Also include a kind of limit switch, this limit switch is electrically connected with the CPU of master control borad; Limit switch includes upper limit position switch, lower position switch and contact, upper limit position switch is arranged on the side of tight sleeve bottom, contact is arranged on and holds out against nut bottom side, with upper limit position switch homonymy, lower position switch is arranged on the side that the upper limit is the vertically opposite reducing motor shell body of switch.
That is, upper limit position switch, contact and lower position switch sequentially from top to bottom arrange and are on same vertical plane.During initial condition, hold out against on position that nut is positioned near reducing motor, and be positioned at and hold out against contact on nut and lower position switch touches closed, now limit switch sends the signal of the CPU of master control borad to is the first limit signal, when holding out against nut and rising under reducing motor and screw acting, contact have left lower position switch, along with the rising holding out against nut, hold out against the compression of spring, hold out against contact on nut gradually near upper limit position switch, when contact and upper limit position switch touch, the CPU that then limit switch is master control borad provides the triggering signal of second limit signal, after CPU receives OFF signal, send instruction and send reducing motor to by motor-drive circuit, reducing motor stops operating, represent that the position of now moving jaw has made itself and regular jaw clamp wire reliably.
Same, when carrying out the operation of unclamping wire, only hold out against position that nut moves downward to reach contact and be connected with lower position switch, the CPU of master control borad receives the first limit signal, send instruction and stop reducing motor, represent that moving jaw and regular jaw are totally released wire, thus next step operation can be carried out.
In the prior art, because the clamping device in drainage system is all manual operation, it needs operating personnel rule of thumb to adjust in operation to the clamping reliability of wire, and this brings the factors of instability for clamping reliability.Therefore, limit switch structure of the present invention make use of the mechanical realization of this transmission and the control of electronic circuit of moving jaw and jacking mechanism, for the clamping reliability of clamping device provides fixed journey system and control circuit, concrete stroke, comprise hold out against spring, tight sleeve, the position holding out against nut and upper limit position switch, lower position switch and contact and distance can according to clamped diameter of wire, class of track and clamping device moving jaw and regular jaw size carry out calculating setting.Stroke set by wire, moving jaw is under the effect of reducing motor, stroke according to setting completes and regular jaw clamping wire, wire can be made to meet force request completely, make clamping device can science, effectively, reliably clamp wire, and reduce the damage to wire to greatest extent.
The present invention can be specially further:
Also include a kind of mechanical trip mechanism, it includes crank and latch, hook stick connecting portion has a cross through hole, flow inducing connecting device has a hole slot, this hole slot also Relative distribution coaxial with the cross through hole on hook stick connecting portion, latch is through cross through hole, and one end is plugged on the hole slot of flow inducing connecting device, simultaneously, this latch has a driving lever, one bar portion of crank is touching on driving lever by a side of flow inducing connecting device, the end in another bar portion of crank is provided with insulation control member, the crosspoint in crank two bar portion is provided with fulcrum.
Although the fixed part comprising reducing motor, master control borad and hook stick connecting portion can adopt fixed support to be connected on stationary housing or flow inducing connecting device, but for preventing remote control malfunctioning, or the malfunctioning clamping device that causes of motor drive mechanism cannot withdraw circuit in time, can increase mechanical trip mechanism further, now fixation portions part is supported on flow inducing connecting device in the mode be flexibly connected by mechanical trip mechanism.Mechanical trip mechanism have employed lever principle, with the fulcrum on crank for fulcrum, driving lever on latch is resistance point, the impetus of insulation stay cord is for using force, the bar portion be touching on driving lever is resistance arm, the cadre that insulation stay cord connects is power arm, pull insulation control member (as insulation driving lever during use, insulation stay cord etc.), thus stir driving lever by crank, and then promotion latch, latch is moved to the direction away from flow inducing connecting device, and depart from flow inducing connecting device, fixed part is lost support and drive jacking mechanism and moving jaw to move downward under gravity, thus enable clamping device unclamp wire in time.
Also include a shell body, flow inducing connecting device is a kind of drainage copper rod, and it is through this shell body inner chamber one sidepiece, and bottom passes below shell body, and is electrically connected with High-Voltage Insulation connecting line; Expose outside outside the upper end of drainage copper rod the top of housing, and be connected with regular jaw; The fixed part comprising reducing motor, master control borad and hook stick connecting portion is positioned at the other side of shell body inner chamber.
In the inner chamber of this shell body, be provided with the cooperation cavity holding fixation portions part, make fixed part be installed in this shell body, drainage copper rod then can shuttle back and forth in shell body in activity, or is fixed with housing.
Described adjustable connecting components is a kind of flat flexible conductor, and its one end is fixed on flow inducing connecting device, and the other end is fixedly connected with moving jaw.
This adjustable connecting components can also be a kind of guide rail component that can conduct electricity, and one end of moving jaw is connected in this guide rail component by a kind of conduction guide rod.
Like this, just can ensure that moving jaw can have the movement enough freely up and down spending to guarantee to carry out rising and declining under the effect of jacking mechanism and reducing motor in certain distance.
The present invention can be specially further:
Current collection circuit mainly comprises the parts such as I-V conversion, rectification, dividing potential drop, filtering, thus the AC-AC current conversion that coil CUR responds to is become direct voltage and the internal A/D converter sending into single-chip microcomputer gathers.
Temperature collection circuit mainly comprises resistance-part such as voltage transitions, filtering, thus the change in resistance that thermistor RT1 responds to is converted to magnitude of voltage and to change and the internal A/D converter sending into single-chip microcomputer gathers.
The CPU of master control borad is a kind of single chip circuit, includes singlechip chip, reset circuit, download debug circuit and filter circuit, and reset circuit, download debug circuit and filter circuit are electrically connected with singlechip chip respectively.
Reset circuit provides electrification reset function for singlechip chip, and download debug circuit and provide detail programming function, filter circuit is then for the work of singlechip chip provides jamproof function.
Singlechip chip employing model is the IPM intelligent object of MSP430F149.
The motor-drive circuit of master control borad is a kind of motor-drive circuit, include optical coupling isolation circuit and current amplification circuit, the input of optical coupling isolation circuit connects CPU, and accept the pulse signal that CPU provides, the output of optical coupling isolation circuit is electrically connected with current amplification circuit, and the output of current amplification circuit is electrically connected with the control circuit of reducing motor.
Motor-drive circuit carrys out drive motors by pulse and carries out action, and optical coupling isolation circuit is for isolating interference signal, and current amplification circuit is for amplifying drive singal, to be supplied to the enough enabling signals of reducing motor.
The display translation unit of hand-held monitoring device includes liquid crystal display drive circuit and liquid crystal display, the input connection data processing unit of liquid crystal display drive circuit, output connecting fluid crystal display.
In sum, the invention provides a kind of distribution network live line work drainage system with remote monitoring in real time, drainage system arranges temperature sensor and current sensor effectively reliably, thus Real-time Collection monitor data, further by wireless transmissioning mode, data are real-time transmitted in controlled range the hand-held monitoring device on ground at a distance, check for care provider, make care provider can know on-the-spot condition of construction the very first time, and judge in real time, send correct prompting in advance, ensure the personal safety of operating personnel, reduce labour intensity, reduce its operational pressure, be conducive to live line working site operation safety.In addition, hand-held monitoring device is also adopted to carry out remote control clamping to the clamping device in drainage system and unclamp control, simplify the operation sequence of operating personnel, avoid operating personnel and bring a series of inconvenience and unsafe problems because of nearly body operation, it also avoid the operating reliability problem that remote manual operation brings simultaneously; Decrease the operational pressure of operating personnel, ensure safety in production; In addition, owing to have employed reducing motor, achieve and apply balanced clamping force to wire, the dynamics avoiding artificial force is uneven, the impaired problem of the biased wire caused in direction; The radian symmetrical structure of moving jaw and bridge like regular jaw can adapt to the surperficial radian of wire, and provides good face contact, to implement positive pressure to wire, solves the impaired problem of wire further.
Accompanying drawing explanation
Fig. 1 is the system composition schematic diagram of distribution network live line work drainage system of the present invention;
Fig. 2 is the structural representation of clamping device in distribution network live line work drainage system of the present invention;
Fig. 3 is the structural representation of clamping device associated jaw portion of the present invention;
Fig. 4 is the structural representation of clamping device jacking mechanism of the present invention;
Fig. 5 is the circuit frame schematic diagram of clamping device master control borad of the present invention;
Figure 6 shows that the electrical block diagram of single chip circuit in clamping device master control borad;
Figure 7 shows that the electrical block diagram of master control borad temperature collection circuit;
Figure 8 shows that the electrical block diagram of master control borad current collection circuit;
Figure 9 shows that the circuit diagram of motor-drive circuit in clamping device master control borad;
Figure 10 shows that the electrical block diagram of limit switch in clamping device;
Figure 11 shows that the circuit frame schematic diagram of hand-held monitoring device;
Figure 12 shows that the electrical block diagram of the data processing unit of hand-held monitoring device.
Below in conjunction with accompanying drawing, the present invention is described further.
Embodiment
Most preferred embodiment:
With reference to accompanying drawing 1, there is the distribution network live line work drainage system of remote monitoring in real time, include a pair clamping device (left clamping device and right clamping device), High-Voltage Insulation connecting line and hand-held monitoring device, the two ends of High-Voltage Insulation connecting line connect left clamping device and right clamping device respectively.Hand-held monitoring device is connected with left and right clamping device Long-distance Control respectively, specifically sees following proposal.
With reference to accompanying drawing 2, the structure of left and right clamping device is identical, specific as follows, and clamping device includes shell body 11, associated jaw portion, jacking mechanism 3, reducing motor 4, master control borad 5, flow inducing connecting device 6 and hook stick connecting portion 7.Flow inducing connecting device is a kind of rodding structure, and it is through this shell body 11 inner chamber one sidepiece, and bottom passes below shell body, and is electrically connected with High-Voltage Insulation connecting line, the top of the housing 11 that exposes outside outside upper end, and is connected with regular jaw; Comprise reducing motor 4, master control borad 5 and provide the battery case 13 of power supply and the fixed part of hook stick connecting portion 7 to be positioned at the other side of shell body 11 inner chamber for master control borad 5 and reducing motor 4, distribute in strip with holding out against together with component 3, the distribution of this strip and flow inducing connecting device 6 are arranged in parallel in the inner chamber of shell body 11.The cooperation cavity holding fixation portions part is provided with in the inner chamber of this shell body 11, fixed part is made to be installed in this shell body, flow inducing connecting device is then connected with fixed part by a kind of mechanical trip mechanism, thus is limited in shell body.
With reference to accompanying drawing 3 on the basis of accompanying drawing 2, associated jaw portion comprises moving jaw 1 and regular jaw 2, regular jaw 2 is structure in bridge shape, lower surface is indent arc, moving jaw 1 is arranged on the below of regular jaw 2, its upper surface has the indent arc with regular jaw 2 lower surface symmetry, forms a kind of olivary through hole when the two is closed, and wire 8 is arranged in this olivary through hole when being subject to associated jaw portion clamping.Flow inducing connecting device 6 is a kind of drainage copper rod, itself and moving jaw 1 and regular jaw 2 vertical distribution, and an end of regular jaw 2 is fixedly connected with the upper surface of this drainage copper rod; Moving jaw 1 is then connected with the side surface of this drainage copper rod by a kind of adjustable connecting components 9; This adjustable connecting components 9 is a kind of flat-shaped soft wire, two ends are fixedly connected on end side and the drainage copper rod side of moving jaw respectively, and become the conducting medium of the two, when moving jaw 1 moves up and down, the position that this flat flexible conductor can comply with moving jaw 1 adjusts thereupon.
See accompanying drawing 4 on the basis of accompanying drawing 2, jacking mechanism 3 in clamping device includes tight sleeve 31, holds out against spring 32, screw rod 33 and hold out against nut 34, screw rod 33 is connected with the rotating shaft of reducing motor 4, hold out against nut 34 bottom and there is a boss structure, hold out against nut 34 for the female rodding structure of a kind of tool, it is placed around screw rod 33 periphery, and is connected with screw rod 33 threaded engagement; Tight sleeve 31 is a kind of "T"-shaped structure, and cross bar upper surface is installed with moving jaw 1; Montant is a kind of under shed, there is the straight-bar of cylindrical internal cavity, hold out against spring 32 to be positioned at and to hold out against above nut 34, and be arranged in the inner chamber of tight sleeve 31 under shed together with the top shaft holding out against nut 34, the inner chamber internal diameter of tight sleeve 31 coordinates with the crest clearance holding out against nut 34.
Jacking mechanism 3 is provided with limit switch, the electrical connection of this limit switch sees below the particular content of master control borad, and mechanical realization is specially: this limit switch includes upper limit position switch 101, contact 102 and lower position switch 103, three is sequentially on same vertical plane from top to bottom, and the contact between three is on same vertical line, and connect as follows respectively, upper limit position switch 101 is arranged on the side of tight sleeve 31 bottom, contact 102 be arranged on hold out against nut bottom boss side on, lower position switch 103 is arranged on the side on reducing motor 4 shell body top.Concrete operation principle is shown in the explanation of appropriate section in summary of the invention.
Mechanical trip mechanism includes crank, latch and driving lever, hook stick connecting portion 7 has a cross through hole, flow inducing connecting device 6 has a hole slot, this hole slot also Relative distribution coaxial with the cross through hole on hook stick connecting portion 7, latch is through cross through hole, and one end is plugged on the hole slot of flow inducing connecting device 6; Driving lever is positioned on latch; Crank is in a kind of " L " type structure, montant is quarter butt, be positioned on the driving lever side by flow inducing connecting device 6 side, cross bar is stock, its free end is provided with insulation stay cord, the square crossing point of cross bar and montant has a through hole, this through hole is plugged with a fixture and is connected on shell body to form fixing point (not drawing) herein, and this fixing point is as the fulcrum of crank.
In actual use, when pulling insulation stay cord, driving lever is promoted by crank, and then pull latch away from flow inducing connecting device 6, now because flow inducing connecting device 6 and regular jaw 2 are articulated on wire, and moving jaw, jacking mechanism and reducing motor, master control borad, the fixed parts such as hook stick connecting portion are then supported on flow inducing connecting device 6 by this mechanical trip mechanism, once startup mechanical trip mechanism, then fixed part can drive jacking mechanism and moving jaw to come off under gravity downwards, shell body now will come off thereupon, therefore need to be provided with to be connected between shell body with flow inducing connecting device 6 to insure, or also can directly adopt the adjustable connecting components between moving jaw with flow inducing connecting device as being connected insurance, the problem in case the equipment that anti-avulsion button produces drops.
With reference to accompanying drawing 5, master control borad 5 includes current collection circuit, temperature collection circuit, limit switch circuit, CPU, wireless communication unit and motor-drive circuit.The current sensor 14 that current collection circuit connects is connected with flow inducing connecting device 6; The temperature sensor 15 that temperature collection circuit connects is arranged on regular jaw 2 on a side of flow inducing connecting device 6, and accompanying drawing 2 is shown in this connection.Current collection circuit gathers distribution network live line work drainage system current information in operation, temperature collection circuit then gathers the temperature data of distribution network live line work drainage system clamping device associated jaw portion in operation, to carry out system monitoring to live line working.Motor-drive circuit is a kind of motor-drive circuit.
With reference to accompanying drawing 6, the CPU of master control borad is a kind of single chip circuit, and single-chip microcomputer employing model is the IPM single-chip computerized intelligent pattern of MSP430F149.Wherein the P6.0/A0 pin of single-chip microcomputer connects current collection circuit, receives the current signal gathered; The P6.1/A1 pin of single-chip microcomputer connects temperature collection circuit, receives the temperature data gathered; The SERVO shown in P1.2/TA1 pin of single-chip microcomputer holds the SERVO end of corresponding connection motor-drive circuit as shown in Figure 7; The P4.2/TB2 pin of single-chip microcomputer connects wireless communication unit, and P5.1/SIMO1 pin and LMT1 and LMT2 corresponding to P5.0/STE1 pin hold LMT1 and the LMT2 end in the limit switch circuit be connected respectively as shown in Figure 8.
With reference to accompanying drawing 7, temperature collection circuit mainly comprises resistance-part such as voltage transitions, filtering, thus convert the change in resistance that thermistor RT1 responds to magnitude of voltage change and be connected to the P6.1/A1 end in Fig. 6 by ADTEMP end, the internal A/D converter sending into single-chip microcomputer gathers.
With reference to accompanying drawing 8, current collection circuit mainly comprises the parts such as I-V conversion, rectification, dividing potential drop, filtering, thus the AC-AC current conversion that coil CUR responds to is become direct voltage and is connected to the P6.0/A0 end in Fig. 6 by ADCUR end, the internal A/D converter sending into single-chip microcomputer gathers.
Motor-drive circuit shown in Fig. 9 includes light-coupled isolation part OP1 and Current amplifier part (by T1, model is the transistor circuit composition of 8050), mainly drives reducing motor to carry out action by pulse, thus completes the action clamping and unclamp jaw.Simultaneously in order to safe and reliable operation, this motor-drive circuit also will be subject to the restriction of limit switch circuit.
In limit switch circuit shown in Figure 10, LMT1/SW1 joint is connected to lower position switch in Fig. 4 and contact; LMT2/SW1 joint is connected to upper limit position switch in Fig. 4 and contact.When lower position switch and contact closure, LMT1/SW1 joint by acquisition first limit signal, and sends single-chip microcomputer to by LMT1 end, controls motor-drive circuit thus and starts or stops; Same, when upper limit position switch and contact closure, LMT2/SW1 joint by acquisition second limit signal, and sends single-chip microcomputer to by LMT2, controls motor-drive circuit thus and starts or stops.
With reference to accompanying drawing 11, hand-held monitoring device includes the Wireless transceiver unit, data processing unit, key-press input unit and the display translation unit that are sequentially electrically connected, the Wireless transceiver unit of hand-held monitoring device and the wireless communication unit wireless connections of master control borad.Key-press input unit includes the control button controlling left clamping device and right clamping device respectively, and receive and export the button controlled, the master control borad of left clamping device or right clamping device has and arranges consistent frequency identification or Address Recognition with hand-held monitoring device data processing unit, like this, the button by controlling left/right clamping device in key-press input unit just can be connected to corresponding clamping device accurately and carry out straighforward operation in remote control transmits.Display translation unit includes liquid crystal display drive circuit and liquid crystal display, the input connection data processing unit of liquid crystal display drive circuit, output connecting fluid crystal display.
Data processing unit is also a kind of single chip circuit, sees accompanying drawing 12, and single-chip microcomputer employing model is the IPM single-chip computerized intelligent pattern of MSP430F149.KEY1 ~ KEY8 pin of single-chip microcomputer is connected to key-press input unit, and P6.4/A4, P6.5/A5, P6.6/A6 of single-chip microcomputer are then connected on liquid crystal display drive circuit.Single-chip microcomputer needs the data sending or receive for the treatment of data, and is sent to the master control borad of clamping device by Wireless transceiver unit, or is sent in display translation device.
Of the present invention have the remote distribution network live line work drainage system specific works principle monitored in real time see described in summary of the invention, and it is same as the prior art that the present invention does not state part.
Claims (9)
1. there is the distribution network live line work drainage system of remote monitoring in real time, it is characterized in that, include a pair clamping device, High-Voltage Insulation connecting line and hand-held monitoring device, wherein clamping device includes moving jaw, regular jaw, temperature sensor, current sensor, master control borad and flow inducing connecting device, regular jaw is fixedly connected with flow inducing connecting device, and moving jaw is then connected by adjustable connecting components with flow inducing connecting device; Temperature sensor is arranged on regular jaw, and current sensor is arranged on flow inducing connecting device; The two ends of High-Voltage Insulation connecting line are connected respectively to each clamping device;
Clamping device also includes jacking mechanism, reducing motor and hook stick connecting portion, regular jaw is bridge like, its one end is fixedly connected with flow inducing connecting device, moving jaw is arranged on below regular jaw, its upper surface has the arcs of recesses symmetrical with regular jaw bridge like, moving jaw one end is connected with flow inducing connecting device by adjustable connecting components, the bottom of moving jaw is arranged on the top end face of jacking mechanism, the rotating shaft of reducing motor and this jacking mechanism are in transmission connection, master control borad also includes a motor-drive circuit, it is electrically connected with the start-up circuit of reducing motor, master control borad and supply unit thereof are arranged in a shielding box body be connected with reducing motor shell, the upper end of hook stick connecting portion is connected with the lower surface of this shielding box body,
Master control borad includes wireless communication unit, CPU and the temperature collection circuit and current collection circuit that are sequentially electrically connected, temperature sensor is connected with CPU by temperature collection circuit, and current sensor is connected with CPU by current collection circuit; Hand-held monitoring device includes the Wireless transceiver unit, data processing unit, key-press input unit and the display translation unit that is connected with data processing unit that are sequentially electrically connected, the Wireless transceiver unit of hand-held monitoring device and the wireless communication unit wireless connections of master control borad;
Two clamping devices are clamped in respectively to be needed on two circuits of bypass drainage, regular jaw, moving jaw and flow inducing connecting device are electric conductor, electric current on circuit carries out drainage by by the above-mentioned part of drainage system and High-Voltage Insulation connecting line, the heating temp of temperature sensor senses regular jaw, current sensor collection is by the current data of drainage system; The data gathered are by after the central processing unit for processing of master control borad, data are sent to hand-held monitoring device by wireless communication unit, hand-held monitoring device receives monitor data by Wireless transceiver unit, after data processing unit process, output to display translation unit, be supplied to care provider and check;
The operating process of clamping device and hand-held monitoring device is: during operation, regular jaw and moving jaw are separately, the clamping device being connected with High-Voltage Insulation connecting line to be articulated on wire now wire and to be positioned at the bridge like curved bottom of regular jaw by operating personnel, then Ground Operation personnel start to operate hand-held watch-dog, close command is inputted by key-press input unit, after data processing unit process, send master control borad to via Wireless transceiver unit; After the wireless communication unit of master control borad receives signal, via CPU dissection process, then motor-drive circuit is sent to, motor-drive circuit sends the start-up circuit that triggering signal passes to reducing motor, thus startup reducing motor, reducing motor now rotates and drives jacking mechanism and moving jaw to move to regular jaw direction, until realize reliable retention to wire; When needing to withdraw, send instruction by hand-held monitoring device equally, trigger reducing motor by master control borad and rotate, drive jacking mechanism and moving jaw to move down, away from regular jaw, unclamp wire.
2. the distribution network live line work drainage system with remote monitoring in real time according to claim 1, it is characterized in that, jacking mechanism includes tight sleeve, holds out against spring, screw rod and hold out against nut, screw rod is connected with the rotating shaft of reducing motor, hold out against nut and be placed around screw rod periphery, and be connected with screw flight, hold out against spring to be positioned at and to hold out against above nut, and the inner chamber of tight sleeve under shed is arranged in together with the top shaft holding out against nut, the inner chamber internal diameter of tight sleeve coordinates with the crest clearance holding out against nut, and the top of tight sleeve is provided with moving jaw simultaneously.
3. the distribution network live line work drainage system with remote monitoring in real time according to claim 2, it is characterized in that, also include a kind of limit switch, this limit switch is electrically connected with the CPU of master control borad; Limit switch includes upper limit position switch, lower position switch and contact, upper limit position switch is arranged on the side of tight sleeve bottom, contact is arranged on and holds out against nut bottom side, with upper limit position switch homonymy, lower position switch is arranged on the side that the upper limit is the vertically opposite reducing motor shell body of switch.
4. the distribution network live line work drainage system with remote monitoring in real time according to claim 1, it is characterized in that, also include a kind of mechanical trip mechanism, it includes crank and latch, hook stick connecting portion has a cross through hole, flow inducing connecting device has a hole slot, this hole slot also Relative distribution coaxial with the cross through hole on hook stick connecting portion, latch is through cross through hole, and one end is plugged on the hole slot of flow inducing connecting device, simultaneously, this latch has a driving lever, one bar portion of crank is touching on driving lever by a side of flow inducing connecting device, the end in another bar portion of crank is provided with insulation stay cord, the crosspoint in crank two bar portion is provided with fulcrum.
5. the distribution network live line work drainage system with remote monitoring in real time according to claim 1, it is characterized in that, also include a shell body, flow inducing connecting device is a kind of drainage copper rod, it is through this shell body inner chamber one sidepiece, bottom passes below shell body, and is electrically connected with High-Voltage Insulation connecting line; Expose outside outside the upper end of drainage copper rod the top of housing, and be connected with regular jaw; The fixed part comprising reducing motor, master control borad and hook stick connecting portion is positioned at the other side of shell body inner chamber.
6. the distribution network live line work drainage system with remote monitoring in real time according to claim 1, it is characterized in that, described adjustable connecting components is a kind of flat flexible conductor, and its one end is fixed on flow inducing connecting device, and the other end is fixedly connected with moving jaw.
7. the distribution network live line work drainage system with remote monitoring in real time according to claim 1, it is characterized in that, adjustable connecting components is a kind of guide rail component that can conduct electricity, it is fixed on flow inducing connecting device, and one end of moving jaw is connected in this guide rail component by a kind of conduction guide rod.
8. the distribution network live line work drainage system with remote monitoring in real time according to claim 1, it is characterized in that, the CPU of master control borad is a kind of single chip circuit, include singlechip chip, reset circuit, download debug circuit and filter circuit, reset circuit, download debug circuit and filter circuit are electrically connected with singlechip chip respectively.
9. the distribution network live line work drainage system with remote monitoring in real time according to claim 1, it is characterized in that, the motor-drive circuit of master control borad includes optical coupling isolation circuit and current amplification circuit, the input of optical coupling isolation circuit connects CPU, and accept the pulse signal that CPU provides, the output of optical coupling isolation circuit is electrically connected with current amplification circuit, and the output of current amplification circuit is electrically connected with the control circuit of reducing motor.
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| CN103995490A (en) * | 2013-02-19 | 2014-08-20 | 河北实华科技有限公司 | Hand-held monitor |
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| CN117638713B (en) * | 2023-11-24 | 2024-07-23 | 国网安徽省电力有限公司岳西县供电公司 | Monitoring and early warning device for distribution network live working |
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