CN105046576A - Key link quality evaluation system for comprehensive quality supervision - Google Patents

Key link quality evaluation system for comprehensive quality supervision Download PDF

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Publication number
CN105046576A
CN105046576A CN201510325107.8A CN201510325107A CN105046576A CN 105046576 A CN105046576 A CN 105046576A CN 201510325107 A CN201510325107 A CN 201510325107A CN 105046576 A CN105046576 A CN 105046576A
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China
Prior art keywords
button
cut
power
circuit
evaluation result
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CN201510325107.8A
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Chinese (zh)
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CN105046576B (en
Inventor
吴国威
周辉
楼其民
李向军
严明安
盛献飞
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State Grid Zhejiang Electric Power Co Ltd
Jinhua Power Supply Co of State Grid Zhejiang Electric Power Co Ltd
Original Assignee
State Grid Zhejiang Electric Power Co Ltd
Jinhua Power Supply Co of State Grid Zhejiang Electric Power Co Ltd
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Application filed by State Grid Zhejiang Electric Power Co Ltd, Jinhua Power Supply Co of State Grid Zhejiang Electric Power Co Ltd filed Critical State Grid Zhejiang Electric Power Co Ltd
Priority to CN201510325107.8A priority Critical patent/CN105046576B/en
Publication of CN105046576A publication Critical patent/CN105046576A/en
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Abstract

The present invention aims to solve the problems existing in the prior art, and provides a key link quality evaluation system for comprehensive quality supervision, which is capable of transmitting a quality evaluation result from a management unit having computers to a department workshop without a computer or network. The key link quality evaluation system comprises a plurality of evaluation result display devices and an evaluation main body which is used for being arranged on a display and is provided with a power supply device. The key link quality evaluation system of the present invention has the beneficial effects that the key link quality evaluation system can control the evaluation main body to transmit the evaluation result required by a department to the evaluation result display device installed in the department, and electricity consumption of the key link quality evaluation system is low in a normal state, thereby saving energy.

Description

A kind of total quality supervision key link QA system
Technical field
The present invention relates to power information field, be specifically related to a kind of total quality supervision key link QA system.
Background technology
Along with deep development and the application of electric power network technique, for the power grid construction quality in operation of power networks, operation of power networks quality, the large crucial management and control link of good service quality three, formulation process index and key business index, form the logical architecture comprising computing formula, index system, computing method in systems in which, form the enforcement management and control application scheme design of total quality supervision, omnibearing monitoring is carried out to power grid asset, operation of power networks, grid service.System carries out concrete refinement, to reach science, to monitor accurately to three large management and control links.By the segmentation of each large index by flow stages, form the direct influence index of secondary (namely this index value directly will affect one-level management and control link) of each stage; Then, decomposed and the combing of index Critical Success Factors by reason, form three-stage process setup measures index (namely the numerical value of this index directly will affect two-level index, but not form direct interact relation with first class index, and form remote effect relation).For one-level, secondary, three grades of indexs, the system definition logical communication link of index, and form computing method, and the index result calculated can be shown by computer, but some department workshops, not configuration computer, maybe can not network, just cannot query evaluation result.
Summary of the invention
The object of the invention is to the problem existing for prior art of solving, find a kind of total quality to supervise key link QA system, quality evaluation result can be gone out and be delivered to department workshop without computer or network from the management unit having computer.
In order to realize described object, a kind of total quality supervision key link QA system, comprise multiple evaluation result display device and one for arranging the Appraising subject being provided with supply unit over the display, described Appraising subject comprises transverse slat, described transverse slat both sides are provided with the perpendicular version straight down vertical with transverse slat, described perpendicular version front end is provided with organizes control group more, described control group of often organizing includes left button, be located at the right button on the right side of left button and the counter being located at left button lower end, left button to be connected with counter by circuit and to increase numerical value for control counter, right button to be connected with counter by circuit and to reduce numerical value for control counter, often the left button organized in control group is connected with corresponding evaluation result display device by circuit with right button, each evaluation result display device comprises rectangular parallelepiped support body, support body top is provided with rotating first sprocket wheel, described support body bottom is provided with rotating second sprocket wheel, described first sprocket wheel is connected by chain with the second sprocket wheel, described chain is provided with the pointer of horizontally set, described support body lower end is provided with servomotor, described servomotor is provided with power-off brake device, described servomotor is connected with motor driver, described left button output terminal is connected with motor driver by circuit, fixed angle is rotated forward for controlling servomotor by motor driver, described left button output terminal is connected with motor driver by circuit, for being controlled servomotor reversion fixed angle by motor driver, described servomotor is connected with the second sprocket wheel for controlling the second sprocket rotation, described rectangular parallelepiped support body surface is provided with to be provided with from top to bottom and is provided with multiple scale successively.
Preferably, the elongated slot that Open Side Down is provided with bottom described perpendicular version, extension spring is provided with in described elongated slot, described extension spring upper end is connected with elongated slot top, lower end is connected with L-type web joint, the horizontal part of the L-type web joint in version is erected towards right side in described left side, the horizontal part of the L-type web joint in version is erected towards left side in described right side, described L-type web joint horizontal part upper end is provided with power-off projection, described perpendicular version lower end is provided with cut-off switch, to control on/off on the electric power loop that described cut-off switch is located at supply unit, when extension spring descends in the raw, on described L-type web joint, power-off projection just in time compresses the cut-off switch of correspondence position to control power supply disconnection.Be connected with display
Preferably, round platform groove is provided with bottom described perpendicular version, the little one end of described round platform groove diameter upward, described round platform groove upper end is also provided with cylindrical switch groove, described switch groove diameter is identical with described round platform groove upper diameter, and described cut-off switch is cylindrical and is located in switch groove, and described cut-off switch length is less than described round platform slot length, described power-off projection is the cylindrical bump that external diameter is identical with switch groove diameter, and edge, described power-off projection upper end is provided with rounding.
Preferably, the position for contacting with display inside described Appraising subject is provided with rubber blanket, and described rubber blanket is provided with the strip protuberance of many horizontally sets, and described strip protuberance is inclined upwardly.
Preferably, described evaluation result display device is provided with positive crossover control lever, inversion line control lever, evaluation result display device inside is provided with positive turn trough and reversion groove, positive crossover control lever center, rotate forward trench bottom, scale is topmost positioned in same level, inversion line control lever center, reversion groove top, the scale be positioned at bottom is positioned in same level, positive crossover control lever middle-end is connected with evaluation result display apparatus pivot, positive turn trough upper end is provided with the first spring, lower end is provided with rotating forward and cut-offs button, rotate forward on connection line that the output terminal cut-offfing button is arranged on left button and motor driver for controlling cut-offfing of its circuit, positive crossover control lever one end to be located in positive turn trough and to be connected with the first lower spring end, the other end is provided with horizontally disposed overhead gage, overhead gage is arranged on the motion track of pointer, inversion line control lever middle-end is connected with evaluation result display apparatus pivot, reversion groove lower end is provided with the second spring, upper end is provided with reversion and cut-offs button, for controlling cut-offfing of its circuit on the connection line that the output terminal that button is cut-off in reversion is arranged on left button and motor driver, inversion line control lever one end to be located in positive turn trough and to be connected with the first lower spring end, the other end is provided with lower baffle plate.
Preferably, described transverse slat lower end is provided with the outstanding control knob for controlling left button power circuit, right button power circuit break-make downwards, and described control knob is upwards by time tight, and left button power circuit, right button power circuit disconnect.
Following Advantageous Effects can be obtained by implementing the present invention: can Appraising subject be controlled, the evaluation result that department needs being delivered to and being arranged between this department in evaluation result display device, and not taking electricity under normality, saving the energy.
Accompanying drawing explanation
Fig. 1 is the one-piece construction schematic diagram of Appraising subject in the present invention;
Fig. 2 is the one-piece construction schematic diagram of evaluation result display device in the present invention;
Fig. 3 is the annexation figure of cut-off switch and round platform groove in the present invention;
Fig. 4 is the partial enlarged drawing at A place in Fig. 2;
Fig. 5 is the partial enlarged drawing at B place in Fig. 2.
Embodiment
For the ease of the understanding of those skilled in the art, below in conjunction with specific embodiment, the present invention is further illustrated:
Power department, needs corresponding data to be processed by data collection module with data, coding, affiliated unit, timing statistics, regionalism multiple features collection power grid construction quality, operation of power networks quality, good service quality; The quality evaluation index selecting module determination client to specify by check requirements is again first class index, two-level index or three grades of indexs; Defined the sub-desired value of each index according to quality evaluation system by performance assessment criteria definition module; By quality evaluation index data acquisition module, review is carried out to the quality assessment related data that screening in early stage enters module, if lack data, then extract once again from data extraction module; Calculate each sub-achievement data by index calculate module according to the quality evaluation system of definition in early stage, intelligentized floating calculating can be carried out for numerical value simultaneously; By quality evaluation index integration module the result finally calculated carried out integrated collection and carry out the approval of each data in this part; By client data display module by first class index, two-level index, three grades of large module generation associations of index three, user can select concrete module to excite corresponding numerical value, carry out data display by display module, warning module is set early warning is carried out to the data exceeding threshold values.And then realize the quality assessment of total quality supervision key link.
When evaluation result out after, some departments are as workshop, and not configuration computer, just cannot instruct evaluation result in time, be delivered to department without computer or network in order to evaluation result being gone out from management unit, applicant devises the evaluation system that correspondence can transmit evaluation information.As shown in Fig. 1 ~ Fig. 2, a kind of total quality supervision key link QA system, comprise multiple evaluation result display device 1 and one for arranging the Appraising subject 2 being provided with supply unit over the display, Appraising subject 2 comprises transverse slat 21, transverse slat 21 both sides are provided with the perpendicular version 22 straight down vertical with transverse slat 21, perpendicular version 22 front end is provided with many group control groups 3, often organize control group 3 and include left button 31, be located at the right button 32 on the right side of left button 31 and the counter 33 being located at left button 31 lower end, left button 31 to be connected with counter 33 by circuit and to increase numerical value for control counter 33, right button 32 to be connected with counter 33 by circuit and to reduce numerical value for control counter 33, often the left button 31 organized in control group 3 is connected with corresponding evaluation result display device 1 by circuit with right button 32, control group 3 is generally corresponding with evaluation result display device 1 to be connected, each evaluation result display device 1 comprises rectangular parallelepiped support body 10, support body 10 top is provided with rotating first sprocket wheel 11, support body 10 bottom is provided with rotating second sprocket wheel 12, first sprocket wheel 11 is connected by chain 13 with the second sprocket wheel 12, chain 13 is provided with the pointer 14 of horizontally set, support body 10 lower end is provided with servomotor 15, servomotor 15 is provided with power-off brake device, servomotor 15 is connected with motor driver 16, left button 31 output terminal is connected with motor driver 16 by circuit, fixed angle is rotated forward for controlling servomotor 15 by motor driver 16, left button 31 output terminal is connected with motor driver 16 by circuit, to reverse fixed angle for being controlled servomotor 15 by motor driver 16, servomotor 15 is connected with the second sprocket wheel 12 and rotates for controlling the second sprocket wheel 12, rectangular parallelepiped support body 10 surface is provided with to be provided with from top to bottom and is provided with multiple scale 17 successively.
During use, Appraising subject 2 is set on the display of managerial personnel, the planform of Appraising subject 2 is convenient to be connected with display, and be convenient to and displays separated, in department D, install evaluation result display device 1, on one of them, left button 31 output terminal of control group 3 rotates forward by circuit and the motor driver 16 on the device displaying result 1 in department D that control end is connected, right button 32 output terminal is connected with the reversion control end of motor driver 16 by circuit; By left button 31 once, left button 31 control counter 33 numerical value increases once, control servomotor simultaneously and rotate fixed angle, and then drive pointer 14 to move up fixed range, counter 33 numerical value increases after numerical value once and pointer 14 move, scale 17 variation range that pointer 14 points to is corresponding, if counter 33 initial value is 0, the scale of pointer 14 initial directional is 0, by a left button 31, then counter 33 increases 10, and the scale that pointer 14 moves rear sensing is also 10, and the value of this hour counter 33 is identical with the scale that pointer 14 points to.In like manner press right button once, the value that counter 33 reduces is identical with the scale reduced value that pointer 14 points to.Same department E also can install an evaluation result display device 1, being connected by organizing control group 3 with another on Appraising subject 2, often organizing and being equipped with sign board on the left of control group 3 and being connected with the evaluation result display device 1 of which department for marking this control group.Decide on awards through discussion result often to take one month even a season just can be changed once, if the liquid crystal display display of routine, not only easily be physically damaged, and take electricity, and this device is only when pressing left button 31 or right button 32, evaluation result display device 1 is energized mobile, and servomotor does not work at ordinary times, without the need to consuming electricity consumption, very energy-conservation, and the setting of power-off brake device ensure that pointer because of the movement of power-off, can not ensure that the accuracy that pointer indicates.Think that this device arranges over the display as the Appraising subject 2 of control end, so this device can also with software with the use of, by software by the reality of different evaluation results in different positions, and corresponding with corresponding control group 3 position, and then be convenient to managerial personnel's check and correction, control.
The elongated slot 221 that Open Side Down is provided with bottom perpendicular version 22, extension spring 222 is provided with in elongated slot 221, extension spring 222 upper end is connected with elongated slot 221 top, extension spring 222 lower end is connected with L-type web joint 4, the horizontal part of the L-type web joint 4 in the perpendicular version 22 in left side is towards right side, the horizontal part of the L-type web joint 4 in the perpendicular version 22 in right side is towards left side, L-type web joint 4 horizontal part upper end is provided with power-off projection 5, perpendicular version 22 lower end is provided with cut-off switch 6, to control on/off on the electric power loop that cut-off switch 6 is located at supply unit, when extension spring 222 descends in the raw, on L-type web joint 4, power-off projection 5 just in time compresses the cut-off switch 6 of correspondence position to control power supply disconnection.Appraising subject 2 and display not only can be fixed more firm by L-type web joint 4 by such structure, and when Appraising subject 2 is installed to another computer by needs, also very convenient, L-type web joint 4 only need be pulled to get final product and displays separated.Easy to use in order to device, the supply unit of Appraising subject 2 is generally lithium battery, when Appraising subject 2 is installed on another display from a display, easily touch left button or right button by mistake, the vibrational power flow of this device Appraising subject 2, Appraising subject 2 can be made when leaving display, extension spring 222 pulls L-type web joint 4 automatically, and the power-off projection 5 on L-type web joint 4 is compressed with cut-off switch 6, and then the electric power loop controlling supply unit disconnects, and then prevent from, when mobile Appraising subject 2, maloperation occurs, improve security.
Round platform groove 7 is provided with bottom perpendicular version 22, the little one end of round platform groove 7 diameter upward, round platform groove 7 upper end is also provided with cylindrical switch groove 8, switch groove 8 diameter is identical with round platform groove 7 upper diameter, cut-off switch 6 is cylindrical and is located in switch groove 8, cut-off switch 6 length is less than round platform groove 7 length, and power-off projection 5 is the cylindrical bump that external diameter is identical with switch groove 8 diameter, and edge, power-off projection 5 upper end is provided with rounding.After long-time use, device there will be catabiosis, and L-type web joint 4 likely offsets, and this structure can automatic calibration L-type web joint 4 position, prevent cut-offfing of power-off projection 5 uncontrollable cut-off switch 6 because of occurring to offset with the relative position of cut-off switch 6, improve serviceable life, reduce the requirement to precision when device is produced.
Position for contacting with display inside Appraising subject 2 is provided with rubber blanket 9, rubber blanket 9 is provided with the strip protuberance 91 of many horizontally sets, strip protuberance 91 is inclined upwardly, transverse slat 21 lower end is provided with the outstanding control knob 211 for controlling left button 31 power circuit, right button 32 supply unit circuit on-off downwards, control knob 211 is upwards by time tight, and left button 31 power circuit, right button 32 power circuit disconnect.When Appraising subject 2 is installed, Appraising subject 2 is over the display sheathed from top to bottom, arranging of strip protuberance 91 can prevent Appraising subject 2 from upwards offseting, when mobile Appraising subject 2 moves to bottommost and display agrees with, display is pinned control knob 211 and then is controlled left button 31 power circuit, right button 32 supply unit line conduction, when Appraising subject 2 and displays separated, control knob 211 is upspring, and then control left button 31 power circuit, the disconnection of right button 32 supply unit circuit, improve security and practicality.
As Fig. 4, shown in Fig. 5, evaluation result display device 1 is provided with positive crossover control lever 18, inversion line control lever 19, evaluation result display device 1 inside is provided with positive turn trough 181 and reversion groove 191, positive crossover control lever 18 center, bottom positive turn trough 181, scale is topmost positioned in same level, inversion line control lever 19 center, reversion groove 191 top, the scale be positioned at bottom is positioned in same level, positive crossover control lever 18 middle-end and evaluation result display device 1 are rotationally connected, positive turn trough 181 upper end is provided with the first spring 182, lower end is provided with rotating forward and cut-offs button 183, rotate forward the output terminal cut-offfing button 183 to be arranged on left button 31 and the connection line of motor driver 16 for controlling cut-offfing of its circuit, positive crossover control lever 18 one end to be located in positive turn trough 181 and to be connected with the first spring 182 lower end, the other end is provided with horizontally disposed overhead gage 184, overhead gage 184 is arranged on the motion track of pointer 14, inversion line control lever 19 middle-end and evaluation result display device 1 are rotationally connected, reversion groove 191 lower end is provided with the second spring 192, upper end is provided with reversion and cut-offs button 193, the output terminal that button 193 is cut-off in reversion is arranged on left button 31 and the connection line of motor driver 16 for controlling cut-offfing of its circuit, inversion line control lever 19 one end to be located in positive turn trough 181 and to be connected with the first spring 182 lower end, the other end is provided with lower baffle plate 194.Principle of work, when pointer 14 moves to overhead gage 184 position, pointer 14 promotes overhead gage 184 (in order to improve effect, easy to make, overhead gage 184 is preferably the rod-like structure that fore-and-aft direction is arranged) move up, and then positive crossover control lever 18 rotates, that one end that positive crossover control lever 18 is positioned at the first spring 182 place moves down and contacts rotating forward cut-offs button 183, and then the disconnection that button 183 controls the connection line of left button 31 and motor driver 16 is cut-off in startup rotating forward, and then it is mobile to make pointer 14 stop, and now, can not be moved by pointer during left button 31 14, can by pressing repeatedly left button 31, then counter 33 is reset to 100, and then realize proofreading function.In like manner, when pointer 14 moves to lower baffle plate 194 position, pointer 14 promotes lower baffle plate 194 (in order to improve effect, easy to make, lower baffle plate 194 is preferably the rod-like structure that fore-and-aft direction is arranged) move down, and then inversion line control lever 19 rotates, that one end that inversion line control lever 19 is positioned at the second spring 192 place moves up and contacts reversion and cut-offs button 193, and then the disconnection that button 193 controls the connection line of right button 32 and motor driver 16 is cut-off in startup reversion, and then it is mobile to make pointer 14 stop, and now, can not be moved by pointer during right button 32 14, can by pressing right button 32, then counter 33 is reset to 0, and then realize proofreading function.Such structure can also prevent border, the pointer place of moving and damage together.
Following Advantageous Effects can be obtained: by service quality being divided into the index of three ranks by implementing the present invention, by the computing method that three ranks are corresponding, accelerating computing velocity, is that power department carries out quality plan and improves foundation accurately by evaluation result.
The foregoing is only specific embodiments of the invention, but technical characteristic of the present invention is not limited thereto, any those skilled in the art is in the field of the invention, and the change done or modification are all encompassed among the scope of the claims of the present invention.

Claims (6)

1. a total quality supervision key link QA system, it is characterized in that: comprise multiple evaluation result display device and one for arranging the Appraising subject being provided with supply unit over the display, described Appraising subject comprises transverse slat, described transverse slat both sides are provided with the perpendicular version straight down vertical with transverse slat, described perpendicular version front end is provided with organizes control group more, described control group of often organizing includes left button, be located at the right button on the right side of left button and the counter being located at left button lower end, left button to be connected with counter by circuit and to increase numerical value for control counter, right button to be connected with counter by circuit and to reduce numerical value for control counter, often the left button organized in control group is connected with corresponding evaluation result display device by circuit with right button, each evaluation result display device comprises rectangular parallelepiped support body, support body top is provided with rotating first sprocket wheel, described support body bottom is provided with rotating second sprocket wheel, described first sprocket wheel is connected by chain with the second sprocket wheel, described chain is provided with the pointer of horizontally set, described support body lower end is provided with servomotor, described servomotor is provided with power-off brake device, described servomotor is connected with motor driver, described left button output terminal is connected with motor driver by circuit, fixed angle is rotated forward for controlling servomotor by motor driver, described left button output terminal is connected with motor driver by circuit, for being controlled servomotor reversion fixed angle by motor driver, described servomotor is connected with the second sprocket wheel for controlling the second sprocket rotation, described rectangular parallelepiped support body surface is provided with to be provided with from top to bottom and is provided with multiple scale successively.
2. a kind of total quality supervision key link QA system as claimed in claim 1, it is characterized in that: bottom described perpendicular version, be provided with the elongated slot that Open Side Down, extension spring is provided with in described elongated slot, described extension spring upper end is connected with elongated slot top, lower end is connected with L-type web joint, the horizontal part of the L-type web joint in version is erected towards right side in described left side, the horizontal part of the L-type web joint in version is erected towards left side in described right side, described L-type web joint horizontal part upper end is provided with power-off projection, described perpendicular version lower end is provided with cut-off switch, to control on/off on the electric power loop that described cut-off switch is located at supply unit, when extension spring descends in the raw, on described L-type web joint, power-off projection just in time compresses the cut-off switch of correspondence position to control power supply disconnection.
3. a kind of total quality supervision key link QA system as claimed in claim 1, it is characterized in that: bottom described perpendicular version, be provided with round platform groove, the little one end of described round platform groove diameter upward, described round platform groove upper end is also provided with cylindrical switch groove, described switch groove diameter is identical with described round platform groove upper diameter, described cut-off switch is cylindrical and is located in switch groove, described cut-off switch length is less than described round platform slot length, described power-off projection is the cylindrical bump that external diameter is identical with switch groove diameter, and edge, described power-off projection upper end is provided with rounding.
4. a kind of total quality supervision key link QA system as claimed in claim 1, it is characterized in that: the position for contacting with display inside described Appraising subject is provided with rubber blanket, described rubber blanket is provided with the strip protuberance of many horizontally sets, and described strip protuberance is inclined upwardly.
5. a kind of total quality supervision key link QA system as claimed in claim 1, it is characterized in that: described evaluation result display device is provided with positive crossover control lever, inversion line control lever, evaluation result display device inside is provided with positive turn trough and reversion groove, positive crossover control lever center, rotate forward trench bottom, scale is topmost positioned in same level, inversion line control lever center, reversion groove top, the scale be positioned at bottom is positioned in same level, positive crossover control lever middle-end is connected with evaluation result display apparatus pivot, positive turn trough upper end is provided with the first spring, lower end is provided with rotating forward and cut-offs button, rotate forward on connection line that the output terminal cut-offfing button is arranged on left button and motor driver for controlling cut-offfing of its circuit, positive crossover control lever one end to be located in positive turn trough and to be connected with the first lower spring end, the other end is provided with horizontally disposed overhead gage, overhead gage is arranged on the motion track of pointer, inversion line control lever middle-end is connected with evaluation result display apparatus pivot, reversion groove lower end is provided with the second spring, upper end is provided with reversion and cut-offs button, for controlling cut-offfing of its circuit on the connection line that the output terminal that button is cut-off in reversion is arranged on left button and motor driver, inversion line control lever one end to be located in positive turn trough and to be connected with the first lower spring end, the other end is provided with lower baffle plate.
6. a kind of total quality supervision key link QA system as claimed in claim 1, it is characterized in that: described transverse slat lower end is provided with the outstanding control knob for controlling left button power circuit, right button power circuit break-make downwards, described control knob is upwards by time tight, and left button power circuit, right button power circuit disconnect.
CN201510325107.8A 2015-06-12 2015-06-12 A kind of total quality supervision key link QA system Active CN105046576B (en)

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Citations (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN87100554A (en) * 1987-02-14 1987-09-09 曹骥 Select answer topic test result immediate feedback device
CN203151898U (en) * 2013-02-01 2013-08-21 广东电网公司信息中心 Portable practical evaluation device
CN204203308U (en) * 2014-04-09 2015-03-11 杭州市质量技术监督检测院 Electric energy on-line real time monitoring device
US20150114084A1 (en) * 2012-03-31 2015-04-30 China University Of Mining & Technology (Beijing) Dynamics performance testing system

Patent Citations (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN87100554A (en) * 1987-02-14 1987-09-09 曹骥 Select answer topic test result immediate feedback device
US20150114084A1 (en) * 2012-03-31 2015-04-30 China University Of Mining & Technology (Beijing) Dynamics performance testing system
CN203151898U (en) * 2013-02-01 2013-08-21 广东电网公司信息中心 Portable practical evaluation device
CN204203308U (en) * 2014-04-09 2015-03-11 杭州市质量技术监督检测院 Electric energy on-line real time monitoring device

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