CN103091565B - Direct current formate field intensity detection method and system - Google Patents
Direct current formate field intensity detection method and system Download PDFInfo
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- CN103091565B CN103091565B CN201310038880.7A CN201310038880A CN103091565B CN 103091565 B CN103091565 B CN 103091565B CN 201310038880 A CN201310038880 A CN 201310038880A CN 103091565 B CN103091565 B CN 103091565B
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Abstract
The invention belongs to direct current transportation detection field, be specially direct current formate field intensity detection method and system, can accurately realize synchronous detection.Direct current formate field intensity detection method, comprising: by wireless network simultaneously to the order of multiple detector transmit button machine; Detector described in each is made to receive described switching on and shutting down order by wireless network, and according to described switching on and shutting down order, gauge tap circuit turn-on or closedown; When on-off circuit conducting, detector probe switches on power, and carries out the detection of direct current formate field intensity; When on-off circuit cuts out, detector probe deenergization, stops direct current formate field intensity to detect.Direct current formate field intensity detection system, comprising: computing machine, multiple above-mentioned detector; In addition, this system also comprises ground plate and calibrating installation.
Description
Technical field
The present invention relates to direct current transportation detection field, particularly relate to direct current formate field intensity detection method and system.
Background technology
In recent years, China's electric utility fast development, power technology level is advanced by leaps and bounds, and the erection of high pressure and super high voltage direct current electricity transmission net is taken its place in the front ranks of the world with putting into operation, and the electromagnetic environment problem around direct current transportation facility more and more causes the concern of people.The detection technique of the environmental impact factor of direct current transportation facility is also become day by day to the focus of electric power and environmental protection industry (epi) concern.
Direct current formate field intensity is the major electromagnetic environmental parameter of DC power transmission line and current conversion station, along with China carrying out superhigh voltage DC project of transmitting and converting electricity Environmental Impact Assessment, has become an important process to the detection of direct current formate field intensity.
Power industry standard " DC converter station and circuit combination field intensity, ion flow density measurement method " (DL/T1089-2008) recommends the detecting instrument of direct current formate field intensity to be field mill type direct current formate field intensity detector.Field mill type direct current formate field intensity detector is made up of two groups of fan blades of installing up and down, fan blades is below induction fan blades, rotating fan blades is above driven by motor and rotates, thus induction fan blades below produces periodic induced signal, i.e. AC signal, then AD sample detecting is carried out to AC signal, and then record direct current formate field intensity.
Simultaneously the standard-required that above-mentioned direct current formate field intensity detects to detect by multiple spot, that is needs the switch simultaneously opening multiple detector, to ensure that multiple detector synchronously carries out field intensity detection.At present, generally all open or close by manual type the switch that detector is arranged, this just causes in multiple spot simultaneously testing process, need switching on and shutting down one by one frequently, workload is larger, and owing to being manually carry out switching on and shutting down, being also difficult to accurate guarantee and opening multiple detector to realize synchronous detection simultaneously.
Summary of the invention
The present invention proposes direct current formate field intensity detection method and system, can accurately realize synchronous detection.
In order to achieve the above object, technical scheme of the present invention is achieved in that
Direct current formate field intensity detection method, comprising:
By wireless network simultaneously to the order of multiple detector transmit button machine;
Detector described in each is made to receive described switching on and shutting down order by wireless network, and according to described switching on and shutting down order, gauge tap circuit turn-on or closedown;
When described on-off circuit conducting, detector probe switches on power, and carries out the detection of direct current formate field intensity; When described on-off circuit cuts out, described detector probe deenergization, stops direct current formate field intensity to detect.
Preferably, carry out the detection of direct current formate field intensity described in comprise: the signal gathered in induction fan blades also carries out analyzing and processing to this signal, obtains field intensity data; Described field intensity data comprise field intensity eigenwert and carry out the numbering of described detector of described collection;
The method comprises further: extract the described field intensity value in described field intensity data, and carry out statistical study to this field intensity value, obtain field intensity eigenwert; Call the examining report template prestored, the numbering of the detector described field intensity eigenwert and described field intensity data comprised is filled up to the position of specifying in described examining report template, generates examining report and exports.
Preferably, after obtaining described field intensity eigenwert, the method comprises further: if described field intensity eigenwert exceedes default standard limited value, then point out.
Present invention also offers direct current formate field intensity detection system, comprising: computing machine and more than one detector;
Described computing machine, for passing through wireless network simultaneously to the order of more than one described detector transmit button machine;
Each described detector, for receiving described switching on and shutting down order by wireless network; According to described switching on and shutting down order, control inner on-off circuit conducting or closedown; When described on-off circuit conducting, detector probe switches on power, and carries out the detection of direct current formate field intensity; When described on-off circuit cuts out, described detector probe deenergization, stops direct current formate field intensity to detect.
Preferably, described detector comprises:
Wireless communication module, for receiving described switching on and shutting down order by wireless network;
Main control module, for according to described switching on and shutting down order, gauge tap circuit turn-on or closedown;
Power module, is connected with described wireless communication module, main control module, on-off circuit respectively, for providing working power;
Described on-off circuit, pops one's head in detector and is connected, and switches on power or deenergization for popping one's head in for described detector under the control of described main control module;
Described detector probe, for carrying out the detection of direct current formate field intensity;
Voltage transformation module, be connected with described power module, wireless communication module, main control module, on-off circuit respectively, for the standard operating voltage according to described wireless communication module, main control module, on-off circuit, the voltage of described power module is adjusted to corresponding described standard operating voltage respectively, and exports to described wireless communication module, main control module and on-off circuit.
Preferably, described detector also comprises rotating fan blades and induction fan blades, and described rotating fan blades and induction fan blades are oppositely arranged up and down;
Described detector probe comprises motor and digital processing circuit; Described motor is connected with rotating fan blades, for driving described rotating fan blades to rotate when described detector probe switches on power; Described digital processing circuit, for gathering the signal in described induction fan blades, and carries out analyzing and processing to this signal and obtains field intensity data; Send described field intensity data to described main control module;
Described main control module, for being sent to described computing machine by the described field intensity data received;
Described computing machine, for after receiving described field intensity data, extracts the described field intensity value in described field intensity data, and carries out statistical study to this field intensity value, obtain field intensity eigenwert; Call the examining report template prestored, the numbering of the detector described field intensity eigenwert and described field intensity data comprised is filled up to the position of specifying in described examining report template, generates examining report and exports.
Preferably,
Described wireless communication module is purple honeybee Zigbee wireless communication module;
And/or,
Described on-off circuit is formed by connecting by an electronics-cavity-electron type PNP triode, a cavity-electronics-empty type NPN triode and resistance R1, resistance R2, resistance R3;
Described resistance R2 is series between the base stage of described PNP triode and the collector of described NPN triode, between the emitter that described resistance R1 is parallel to described PNP triode and base stage, the base stage of described NPN triode is connected with described resistance R3, the grounded emitter of described NPN triode.
Preferably, this system comprises ground plate further, and described ground plate is connected in sequence by the sub-ground plate of more than two pieces; The center of described ground plate has for the detector mounting hole by described rotating fan blades, and described ground plate is laid in the upper surface of detector main frame by described detector mounting hole; ;
The junction of adjacent two described sub-ground plates is provided with supporting member, and this supporting member is connected with adjacent two described sub-ground plates respectively.
Preferably, this system comprises calibrating installation further, and described calibrating installation comprises:
High-voltage DC power supply, produces direct current field source during for calibrating detector;
Two pieces of metal plates, are vertically mounted on insulating base, for generation of uniform electric field; Described two pieces of metal plates are connected by multiple detachable insulating pillar, and, wherein one piece of described metal plate has for the detector mounting hole by described rotating fan blades;
The both positive and negative polarity of described high-voltage DC power supply is connected on described two pieces of metal plates respectively.
Preferably,
Described calibrating installation also comprises the insulating supporting base for supporting detector main frame, and the top of this insulating supporting base has draw-in groove, for placing described detector main frame; Described draw-in groove is identical apart from the height of described insulating base with described detector mounting hole apart from the height of described insulating base;
And/or,
Described detachable insulating pillar, comprises that multiple one end is screw thread, the other end is the insulation rod of screw, and insulation rod described in every root cooperatively interacts to realize head and the tail by the screw thread of self with the screw of insulation rod described in another root and is connected; And the edge of described two pieces of metal plates forms relative hole, many group positions, the two ends of described detachable insulating pillar are fixing respectively inserts in relative hole, described position.
Compared with prior art, direct current formate field intensity detection method provided by the invention and system, computing machine passes through wireless network simultaneously to the order of multiple detector transmit button machine, detector is after the switching on and shutting down order receiving computing machine transmission, and according to this switching on and shutting down order, control on-off circuit conducting or the closedown of detector inside; When on-off circuit conducting, detector probe then switches on power, and then starts to carry out the detection of direct current formate field intensity; When on-off circuit cuts out, detector is popped one's head in then deenergization, and then stops carrying out the detection of direct current formate field intensity; From the above, computing machine can, by the order of detector transmit button machine, start to carry out field intensity detection or stop detecting with detection trigger instrument probe; In whole process, without the need to opening or closing detector manually, thus switching on and shutting down being operated more for convenience, saving artificial workload; And, due to simultaneously to the order of multiple detector transmit button machine, and then effectively ensure that multiple detector detects simultaneously.
Accompanying drawing explanation
In order to be illustrated more clearly in the embodiment of the present invention or technical scheme of the prior art, be briefly described to the accompanying drawing used required in embodiment or description of the prior art below, apparently, accompanying drawing in the following describes is some embodiments of the present invention, for those of ordinary skill in the art, under the prerequisite not paying creative work, other accompanying drawing can also be obtained according to these accompanying drawings.
The process flow diagram of a kind of direct current formate field intensity detection method that Fig. 1 provides for the embodiment of the present invention one;
The process flow diagram of the another kind of direct current formate field intensity detection method that Fig. 2 provides for the embodiment of the present invention two;
The structural representation of a kind of direct current formate field intensity detection system that Fig. 3 provides for the embodiment of the present invention three;
The structural representation of the another kind of direct current formate field intensity detection system that Fig. 4 provides for the embodiment of the present invention four;
Fig. 5 is the structural representation of embodiment four breaker in middle circuit;
Fig. 6 is detector complete machine structure schematic diagram in embodiment four;
Fig. 7 is the structural representation in embodiment four after ground plate expansion;
Fig. 8 is the structural representation of ground plate when folding;
Fig. 9 is the structural representation of supporting member in ground plate;
Figure 10 is the structural representation of embodiment four alignment device.
Embodiment
For making the object of the embodiment of the present invention, technical scheme and advantage clearly, below in conjunction with the accompanying drawing in the embodiment of the present invention, technical scheme in the embodiment of the present invention is clearly and completely described, obviously, described embodiment is the present invention's part embodiment, instead of whole embodiments.Based on the embodiment in the present invention, those of ordinary skill in the art, not making the every other embodiment obtained under creative work prerequisite, belong to the scope of protection of the invention.
Embodiment one
The embodiment of the present invention one provides a kind of direct current formate field intensity detection method, and see Fig. 1, the method comprises:
Step S101: by wireless network simultaneously to the order of multiple detector transmit button machine;
This detector is direct current formate field intensity detector;
Step S102: make detector described in each receive described switching on and shutting down order by wireless network, and according to described switching on and shutting down order, gauge tap circuit turn-on or closedown; When described on-off circuit conducting, detector probe switches on power, and carries out the detection of direct current formate field intensity; When described on-off circuit cuts out, described detector probe deenergization, stops direct current formate field intensity to detect.
The direct current formate field intensity detection method that the embodiment of the present invention one provides, by wireless network simultaneously to the order of multiple detector transmit button machine, detector after receiving switching on and shutting down order, and according to this switching on and shutting down order, controls on-off circuit conducting or the closedown of detector inside; When on-off circuit conducting, detector probe then switches on power, and then starts to carry out the detection of direct current formate field intensity; When on-off circuit cuts out, detector is popped one's head in then deenergization, and then stops carrying out the detection of direct current formate field intensity; From the above, can, by the order of detector transmit button machine, start to carry out field intensity detection or stop detecting with detection trigger instrument probe; In whole process, without the need to opening or closing detector manually, thus switching on and shutting down being operated more for convenience, saving artificial workload; And, due to simultaneously to the order of multiple detector transmit button machine, and then effectively ensure that multiple detector detects simultaneously.
In order to optimize the direct current formate field intensity detection method that above-described embodiment one provides further, providing a preferred embodiment of this detection method below, referring to embodiment two.
Embodiment two
The embodiment of the present invention two provides another kind of direct current formate field intensity detection method, and see Fig. 2, the method comprises:
Step 201: computing machine passes through wireless network simultaneously to the order of multiple detector transmit button machine;
Particularly, this switching on and shutting down order comprises detector start or detector shutdown;
And direct current formate field intensity detects and often carries out, and the wired connection mode between hard wired computer and detector then needs longer cable, arrange that difficulty is larger in the wild; Therefore, the connection conveniently between computing machine and multiple detector, the general radio connection that adopts realizes connecting, and then by communication to the order of detector transmit button machine;
Step 202: each detector receives described switching on and shutting down order by wireless network, and according to switching on and shutting down order, control on-off circuit conducting or the closedown of detector inside;
Particularly, disposition during on-off circuit conducting comprises step 203-step 207, and disposition when on-off circuit cuts out comprises step 208;
Step 203: when on-off circuit conducting, detector probe switches on power, and starts the signal in collection induction fan blades and carries out analyzing and processing to this signal, obtaining field intensity data; These field intensity data comprise field intensity value and carry out the numbering of described detector of described collection;
Above-mentioned analyzing and processing specifically carries out filtering, detection, AD conversion etc. to signal, obtains analog-and digital-field intensity value;
Such as, when having multiple detector, each detector one numbering can be distributed to, as 01,02,03 etc.; In general, have ten detectors and detect simultaneously, each detector at least gathers 100 data, and continues 30 minutes;
Step 204: field intensity data are sent to computing machine by wireless network by each detector;
Step 205: computing machine, after receiving field intensity data, extracts the field intensity value in field intensity data, carries out statistical study to all field intensity value, obtains field intensity eigenwert;
Wherein, field intensity eigenwert refers to the maximal value of field intensity, mean value and minimum value, and in standard generally with 95% value as maximal value, 50% value is as mean value;
Correspondingly, computing machine generally counts the field intensity value of 50%, 80%, 95% as field intensity eigenwert; That is, after collecting 100 data, arrange these data by data absolute value order from small to large, namely the field intensity value of 50%, 80%, 95% is the field intensity value of in 100 data the 50th, 80,95;
Step 206: computing machine calls the examining report template prestored, the numbering of the described detector described field intensity eigenwert and described field intensity data comprised is filled up to the position of specifying in described examining report template, generates examining report and exports;
Wherein, user can as required in advance in computing machine stored in examining report template;
Certainly, the raw data of field intensity data also can export in the mode of excel form by computing machine, or graphically display translation;
Step 207: if field intensity eigenwert exceedes the standard limited value prestored in computing machine, then point out;
Such as, for transmission voltage be the DC power transmission line of 800kV when closing on house owed by a citizen, the standard limited value of house owed by a citizen place direct current formate field intensity is 25kV/m, and the field intensity eigenwert of 80% is no more than 15kV/m; The standard limited value that personnel such as transmission line of electricity leap farmland, highway etc. easily arrive the direct current formate field intensity in region is 30kV/m, etc.;
Step 208: when on-off circuit cuts out, detector probe deenergization, stops direct current formate field intensity to detect.
In summary, the direct current formate field intensity detection method that the present embodiment two provides, computing machine can pass through to detector wireless transmission switching on and shutting down order, and then realization control detector carries out detecting or stop to detect; Like this, then open or close detector without the need to manual type, operation more for convenience, decreases a large amount of troublesome operation;
And, when needs control multiple detector carry out detector simultaneously time, computing machine can simultaneously to the order of multiple detector transmit button machine, and then can effectively ensure to detect synchronous, meets the synchronous detection described in direct current formate field intensity testing requirement;
Further, in prior art, when carrying out direct current formate field intensity and detecting, be merely able to count field intensity eigenwert, but can not examining report be generated; And in the present invention, examining report template has been prestored in computing machine, after extracting field intensity eigenwert, the numbering of this field intensity eigenwert and the detector collecting this field intensity eigenwert can be filled up to examining report template, and then export this examining report template; Further facilitate user and carried out the detection of direct current formate field intensity, decrease the process operation in later stage.
Embodiment three
For embodiment one, the embodiment of the present invention three provides a kind of direct current formate field intensity detection system, and see Fig. 3, this system comprises: computing machine 31 and multiple detector 32;
Described computing machine 31, for passing through wireless network simultaneously to the order of multiple described detector 32 transmit button machine;
Each described detector 32, for receiving described switching on and shutting down order by wireless network; According to described switching on and shutting down order, control inner on-off circuit conducting or closedown; When described on-off circuit conducting, detector probe switches on power, and carries out the detection of direct current formate field intensity; When described on-off circuit cuts out, described detector probe deenergization, stops direct current formate field intensity to detect.
Three detectors 32 have been shown in Fig. 3.
In order to optimize the direct current formate field intensity detection system that above-described embodiment three provides further, providing a preferred embodiment of this detection system below, referring to embodiment four.
Embodiment four
The embodiment of the present invention four provides another kind of direct current formate field intensity detection system, and this system comprises the detector described in ground plate, calibrating installation, computing machine and above-described embodiment, particularly, see Fig. 4, this system comprises: computing machine 41, multiple detector 42, ground plate 43; For two detectors 42 in Fig. 4;
Computing machine 41, comprising: order generation module 411, first wireless communication module 412, statistical analysis module 413, template memory module 414, report generation module 415, output module 416, abnormality processing module 417;
Order generation module 411, for generating switching on and shutting down order;
First wireless communication module 412, for passing through wireless network simultaneously to the order of multiple detector 42 transmit button machine; Also for being received the field intensity data that each detector sends by wireless network;
This first wireless communication module is mapped as a serial port in computing machine, can write the control command (as switching on and shutting down order) appointed to this serial port, then this order is converted into wireless signal transmission and goes out by the first wireless communication module; And, after receiving detector transmission field intensity data, these field intensity data are delivered to the serial port of specifying, computing machine reads data from this serial port again, and each detector is with the numbering uniquely corresponding with self, by distinguishing that the numbering of carrying in field intensity data identifies the detector sending these field intensity data;
Statistical analysis module 413, for after the field intensity data receiving detector transmission, extracts the field intensity value in field intensity data, carries out statistical study to all field intensity value, obtain field intensity eigenwert;
Template memory module 414, for storing the examining report template that user pre-enters;
Report generation module 415, for calling the examining report template prestored, the numbering of the detector described field intensity eigenwert and described field intensity data comprised is filled up to the position of specifying in described examining report template, generates examining report; And the examining report filled is exported by output module 416;
Output module 416, also for by field intensity data with the mode display translation of excel form and/or figure;
Abnormality processing module 417, for when field intensity eigenwert exceedes the standard limited value prestored in computing machine, points out;
Each detector 42, comprising: power module 421, the second wireless communication module 422, main control module 423, on-off circuit 424, detector probe 425, voltage transformation module 426;
Power module 421, is connected with second communication module 422, main control module 423, on-off circuit 424 respectively, for providing working power for it;
Second wireless communication module 422, for the switching on and shutting down order sent by wireless network receiving computer; And by cordless communication network, these field intensity data are sent to computing machine after detector probe 425 generates field intensity data; And the second wireless communication module communicates with the serial ports of main control module by Transistor-Transistor Logic level;
Preferably, in the present embodiment, the first wireless communication module in computing machine 41 is host node, and the second wireless communication module in multiple detector 42 is from node, thus composition Star Network;
Preferably, second wireless communication module 422 can adopt purple honeybee Zigbee wireless communication module, 50 meters are generally no more than compared to adopting its communication distance of wireless communication module in prior art, and adopt purple honeybee Zigbee wireless communication module, if detector is external antenna not, communication distance can be made to reach 200 meters, if detector external antenna, then communication distance can reach 1000m, the radio communication between effective guarantee computing machine and detector;
Main control module 423, for according to described switching on and shutting down order, gauge tap circuit 424 conducting or closedown; This main control module 423 can be the MCU control chips such as ARM, single-chip microcomputer, FPGA or CPU, such as, can select the ARM chip of STM32F103VC model, with satisfied control and the demand communicated;
On-off circuit 424, pops one's head in detector and 425 to be connected, under the control of described main control module 423 for described detector probe 425 switches on power or deenergization;
Preferably, in Fig. 5, give a kind of preferred circuit design of on-off circuit 424, particularly:
On-off circuit 424 is formed by connecting by an electronics-cavity-electron type PNP triode, a cavity-electronics-empty type NPN triode and resistance R1, resistance R2, resistance R3;
Described resistance R2 is series between the base stage of described PNP triode and the collector of described NPN triode, between the emitter that described resistance R1 is parallel to described PNP triode and base stage, the base stage of described NPN triode is connected with described resistance R3, the grounded emitter of described NPN triode;
Wherein, 501 shown in Fig. 5 is power input, and 502 is power output end, and 503 is control end; Like this, the power input 501 of on-off circuit connects power module, and voltage is generally 12V; Power output end 502 connects the power input of direct current formate field intensity detector probe, and the output port of main control module connects the control end 503 of on-off circuit; When control end 503 inputs TTL high level, triode 504 conducting, the current potential of R2 is 0, electric current from power input 501 through resistance R1, resistance R2, triode 504 to ground, resistance R2 produces pressure drop, causes triode 505 conducting, switch opens; The voltage of power output end is also 12V, now switch open.When control end 503 inputs TTL low level, triode 504 not conducting, R2 is high level, power input 501 does not flow through the DC channel of resistance R1, resistance R2, and the pressure drop of resistance R1 is zero, triode 505 not conducting, the voltage of power output end 502 is zero, and now switch cuts out;
Further, be connected with the second wireless communication module 422, main control module 423, on-off circuit 424 respectively due to power module 421 and provide working power for it, and the voltage that the standard operating voltage of second communication module, main control module, on-off circuit and power module provide is not necessarily consistent, therefore in order to expand the scope of application of detector, in the present embodiment, detector 42 also comprises voltage transformation module 426, that is:
This voltage transformation module 426 is connected with described power module 421, second wireless communication module 422, main control module 423, on-off circuit 424 respectively, for the standard operating voltage according to described second wireless communication module, main control module, on-off circuit, the voltage of described power module is adjusted to corresponding described standard operating voltage respectively, and exports to described second wireless communication module, main control module and on-off circuit;
Such as, power module is 5V to the voltage that the second wireless communication module exports, and the voltage exported to main control module is 3.3V, and the voltage exported to on-off circuit is 12V;
See Fig. 6, detector 42 also comprises rotating fan blades 427, induction fan blades 428 and detector main frame 429, and described rotating fan blades 427 and induction fan blades about 428 are oppositely arranged; And the above-mentioned module of detector or circuit are all arranged in detector main frame 429;
Wherein, detector probe 425, comprises motor and digital processing circuit; Described motor is connected with rotating fan blades 427, for driving described rotating fan blades 427 to rotate when described detector probe switches on power; Described digital processing circuit, for gathering the signal in described induction fan blades 428, carrying out analyzing and processing to this signal and obtaining field intensity data, and send described field intensity data to described main control module 423;
Further, in the present embodiment, direct current formate field intensity detection system also comprises ground plate 43, and this ground plate is used for riding over the upper surface of detector main frame as ground connection reference planes when measuring field intensity, and the position of ground plate 43 as shown in Figure 6; Size according to the ground plate described in the testing requirement of current direct current formate field intensity should be 1m*1m, and the area of ground plate of the prior art is generally 70cm*70cm, and this can not meet the requirement of standard completely; Also the size having the ground plate of sampling in some schemes is 1m*1m really, but is inconvenient to carry, and the screening machine width in such as most airport and railway station is 1m, and ground plate after packaging volume is too large, cannot pass through screening machine; Therefore, in the present embodiment, improvement has been done to ground plate, particularly,
Described ground plate is connected in sequence by the sub-ground plate of more than two pieces; The center of described ground plate has for the detector mounting hole by described rotating fan blades, and described ground plate is laid in the upper surface of detector main frame by described detector mounting hole; Such as, and sub-ground plate is sheet metal, aluminium sheet;
The junction of adjacent two described sub-ground plates is provided with supporting member, and this supporting member is connected with adjacent two described sub-ground plates respectively;
Preferably, the sub-ground plate of described more than two pieces connects for gemel connection successively; Particularly, see Fig. 7 and Fig. 8, ground plate comprises four pieces of foursquare sub-ground plates 701, sub-ground plate 701 is of a size of 0.5m*0.5m, all dismiss quadrant for one jiao of every sub-ground plate, four sub-ground plates are in turn connected to form the ground plate of 1m*1m, have three junctions to be provided with hinge 702 in four junctions, and two pieces of adjacent in these three junctions so sub-ground plates, one secondary hinge is connected; Wherein, two, the left and right fan blades of every secondary hinge has multiple fixed orifice, corresponding adjacent Liang Kuaizi ground plate edge also has the fixed orifice identical with the fixed orifice quantity on hinge, and cooperatively interacts to realize being connected by rivet and fixed orifice with adjacent two pieces of sub-ground plates respectively in two, the left and right of junction hinge fan blades;
Like this, as shown in Figure 7, four pieces of sub-ground plates 701 are after installing, in be formed centrally circular hole, this circular hole is slightly larger than the size of the rotating fan blades on detector, rotating fan blades can pass through this circular hole, but detector main frame then cannot pass through, such ground plate is when being installed on detector main frame, upper surface and the ground plate of detector main frame are positioned at same plane, not only ensure ground plate and detector main frame good contact, and ground plate center can obtain again the anchorage force of detector main frame, ensure the stability of device in testing process;
As shown in Figure 8, when four pieces of sub-ground plates fold, the two secondary hinges be on same axis are positioned at same plane, another secondary hinge is positioned at another plane with this plane being perpendicular, like this, every block ground plate folds towards hinge installed surface, can form portable small size;
In addition, ground plate also comprises multiple supporting member 703, for fixing and supported grounding plate; In Fig. 7, preferably, this supporting member is specially four, and each supporting member 703 is arranged on the junction of two pieces of adjacent sub-ground plates, is connected respectively with adjacent two sub-ground plates; And four supporting member 703 symmetries are arranged on four limits of ground plate; And the height of supporting member is identical with the height of detector main frame, supporting member and detector main frame are all placed on the ground;
Preferably, see Fig. 9, supporting member 703 specifically comprises: T-shaped aluminium brackets 901, screw lock 902, dismountable hand tighten screw 903, wherein, the upper surface left and right sides of T-shaped aluminium brackets is provided with fixed orifice, screw lock from below riveting enters in fixed orifice, and adjacent two pieces of sub-ground plates all form the screw socket mated with screw lock in junction, the threaded portion of screw lock screws in correspondingly in screw socket, like this, namely screw lock is connected on two pieces of adjacent sub-ground plates, supporting member is made to have anchorage force to ground plate, add and to be arranged on after on detector at ground plate, the anchorage force that detector main frame produces ground plate, two kinds of anchorage forces balance the gravity of ground plate, make ground plate maintenance level, improve field strength measurement precision,
The bottom of T-shaped aluminium brackets 901 is provided with screw socket, the screw thread of dismountable hand tighten screw 903 mates with this screw socket, make dismountable hand tighten screw can screw in this screw socket, the so then convenient true altitude regulating supporting member, the out-of-flatness on ground can be compensated, ensure ground plate horizontal positioned, improve measuring accuracy further;
In addition, ground plate also comprises the ground pricker 704 for ensureing reliable ground effect, and when field strength measurement, this ground pricker 704 inserts in the earth, and realize good earth, this ground pricker can adopt the good copper rod of electric conductivity, and the length of copper rod can be 40cm; Ground plate also comprises the earth lead 705 for the reliable ground when measuring formate field intensity, and this earth lead can be copper cash, and the length of copper cash can be 5m; Wherein, one end of copper cash is connected with one of them supporting member, and the other end connects ground pricker;
In the present embodiment, in order to effectively reduce the total quality of ground plate, ground plate and supporting member can adopt aluminum material;
In addition, according to the measurement requirement of direct current formate field intensity, need to calibrate detector; Current calibrating installation comprises two pieces of parallel placements and is parallel to the metal plate on ground, calculates to obtain field intensity according to the distance between the numerical value of the voltage be applied on two pieces of metal plates and two pieces of metal plates; But, metal plate deformation is caused due to the self gravitation of two pieces of metal plates, the actual range of two pieces of metal plate centers is made to be not equal to the distance of edge, that is actual range is different from the calculating distance recorded from edge, thus the field intensity causing actual field intensity and theory calculate to obtain has deviation, causes calibration error; Therefore in the present embodiment, for the defect that above-mentioned calibrating installation brings, provide a kind of calibrating installation improved, particularly, this calibrating installation comprises:
High-voltage DC power supply, produces direct current field source during for calibrating detector;
Two pieces of metal plates, are vertically mounted on insulating base, for generation of uniform electric field; Described two pieces of metal plates are connected by multiple detachable insulating pillar, and, wherein one piece of described metal plate has for the detector mounting hole by described rotating fan blades;
The both positive and negative polarity of described high-voltage DC power supply is connected on described two pieces of metal plates respectively.
Preferably, see Figure 10, the positive pole of high-voltage DC power supply 101 is connected to left pole plate 102, and negative pole is connected to right pole plate 103, then produces uniform electric field like this between the pole plate of left and right; Wherein, identical sized by the pole plate of left and right square-shaped metal is dull and stereotyped; And the shape of detector mounting hole is circular, is arranged on the center of right pole plate;
Calibrating installation also comprises the insulating supporting base 104 for supporting detector main frame, and the shape of this insulating supporting base 104 is rectangular parallelepiped, cuts away one piece of cylinder at the top of rectangular parallelepiped, and then forms draw-in groove 105, for placing described detector main frame; Described draw-in groove is identical apart from the height of described insulating base with described detector mounting hole apart from the height of described insulating base; Like this, when the rotating fan blades on detector passes the detector mounting hole of right pole plate center, detector main frame is just in time stuck in draw-in groove, makes detector main frame and right pole plate reliable contacts, to realize good earth; And rotating fan blades is when by detector mounting hole, and the upper surface of detector main frame and detector mounting hole site are in same plane;
In addition, insulating base 106 has certain thickness, it forms equally distributed multiple bar-shaped trough, for vertically being inserted in bar-shaped trough by two pieces of metal plates, to fix two pieces of metal plates;
In Figure 10, detachable insulation column 107 is seven, is arranged on the edge of two pieces of metal plates respectively; Described detachable insulating pillar, comprises that multiple one end is screw thread, the other end is the insulation rod of screw, and insulation rod described in every root cooperatively interacts to realize head and the tail by the screw thread of self with the screw of insulation rod described in another root and is connected; And the edge of described two pieces of metal plates forms relative hole, many group positions, the two ends of described detachable insulating pillar are fixing respectively inserts in relative hole, described position, makes two pieces of metal plates realize connecting by insulation column;
Like this, can by the quantity of the insulation rod that regulates every root detachable insulation column comprise and/or, the length of insulation rod, then can adjust the distance between two pieces of metal plates, and adjustment operation is more for convenience;
The direct current formate field intensity detection system that the embodiment of the present invention four provides, computing machine can to the order of detector transmit button machine, and then detector is according to this switching on and shutting down order gauge tap circuit turn-on or closedown, thus detector probe can be controlled starts to carry out field intensity detection or stop field intensity detecting; Like this, then open or close detector without the need to manual type, operation more for convenience, improves work efficiency, decreases a large amount of troublesome operation;
And, when needs control multiple detector detect simultaneously time, computing machine can simultaneously to the order of multiple detector transmit button machine, and then can effectively ensure to detect synchronous, meeting the synchronous detection described in direct current formate field intensity testing requirement, laying a good foundation for realizing synchronous data collection;
In addition, compared in prior art during detection arrangement, be generally want manually to be started shooting by detector, driven by motor rotating fan blades operates, and lays ground plate again after being well placed detector, and detect terminate after also need first to pack up ground plate, then close the motor of detector; Now because rotating fan blades is directly exposed to outside, after motor is opened, load and unload ground plate when fan blades rotates and ground plate may be caused to collide with the fan blades in rotation, cause instrument damage even personal safety accident; And in the present invention, can after being well placed detector and ground plate, confirm safety just wirelessly open detection instrument driven by motor rotating fan blades is rotated; After detection terminates, first can wirelessly close detector makes rotating fan blades stop operating, to remove stage makeup and costume under secure conditions detector, thus avoid the instrument safety and personal safety hidden danger that existing detector is installed when electric motor starting, fan blades rotate and instrument of removing stage makeup and costume brings, direct current formate field intensity is detected and becomes safe, efficient, convenient;
Further, computer-internal has template memory module and report generation template, automatically can generate examining report according to the field intensity data received, and this is also the function not available for direct current formate field intensity detection system of the prior art;
Further, in prior art, when carrying out direct current formate field intensity and detecting, be merely able to count field intensity eigenwert, but can not examining report be generated; And in the present invention, examining report template has been prestored in computing machine, after extracting field intensity eigenwert, the numbering of this field intensity eigenwert and the detector collecting this field intensity eigenwert can be filled up to examining report template, and then export this examining report template; Further facilitate user and carried out the detection of direct current formate field intensity, eliminated the troublesome operation of later stage establishment examining report, and namely can obtain examining report at Test Field;
In addition, ground plate is spliced by plural sub-ground plate, and be of a size of 1m*1m, therefore meets the requirement of direct current formate field intensity detection to ground-plane size; When needs carry out then being launched by ground plate when field intensity detects, when not needing to carry out field intensity detection, then ground plate is folded, be convenient for carrying this folding ground plate and also realize reliable ground, measuring accuracy advantages of higher;
Further, be different from two pieces of metal plate horizontal positioned in prior art, and then the center of two pieces of metal plates causes distortion due to Action of Gravity Field, thus produce calibration error; In the present invention, two pieces of metal plates in calibrating installation are placed perpendicular to ground, then the situation avoiding above-mentioned metal plate to be out of shape, improves the accuracy of calibration;
In addition, problem fixing when the insulating supporting base in calibrating installation solves calibration, and also the circular hole that right pole plate is opened is positioned at same plane with detector upper surface, can reduce the error of detection further.
One of ordinary skill in the art will appreciate that: all or part of step realizing said method embodiment can have been come by the hardware that programmed instruction is relevant, aforesaid program can be stored in a computer read/write memory medium, this program, when performing, performs the step comprising said method embodiment; And aforesaid storage medium comprises: ROM, RAM, magnetic disc or CD etc. various can be program code stored medium.
Last it is noted that above embodiment is only in order to illustrate technical scheme of the present invention, be not intended to limit; Although with reference to previous embodiment to invention has been detailed description, those of ordinary skill in the art is to be understood that: it still can be modified to the technical scheme described in foregoing embodiments, or carries out equivalent replacement to wherein portion of techniques feature; And these amendments or replacement, do not make the essence of appropriate technical solution depart from the spirit and scope of various embodiments of the present invention technical scheme.
Claims (7)
1. direct current formate field intensity detection method, is characterized in that, comprising:
By wireless network simultaneously to the order of multiple detector transmit button machine;
Detector described in each is made to receive described switching on and shutting down order by wireless network, and according to described switching on and shutting down order, gauge tap circuit turn-on or closedown;
When described on-off circuit conducting, detector probe switches on power, and carries out the detection of direct current formate field intensity; When described on-off circuit cuts out, described detector probe deenergization, stops direct current formate field intensity to detect; The described direct current formate field intensity that carries out detects and comprises: the signal gathered in induction fan blades also carries out analyzing and processing to this signal, obtains field intensity data; Described field intensity data comprise field intensity value and carry out the numbering of described detector of described collection, and described analyzing and processing comprises filtering, detection and AD conversion;
Described method also comprises: extract the described field intensity value in described field intensity data, and carry out statistical study to this field intensity value, obtain field intensity eigenwert; Call the examining report template prestored, the numbering of the detector described field intensity eigenwert and described field intensity data comprised is filled up to the position of specifying in described examining report template, generates examining report and exports;
Described method comprises further: after obtaining described field intensity eigenwert, also comprise: if described field intensity eigenwert exceedes default standard limited value, then point out.
2. direct current formate field intensity detection system, is characterized in that, comprising: computing machine and multiple detector;
Described computing machine, for passing through wireless network simultaneously to the order of multiple described detector transmit button machine;
Each described detector, for receiving described switching on and shutting down order by wireless network; According to described switching on and shutting down order, control inner on-off circuit conducting or closedown; When described on-off circuit conducting, detector probe switches on power, and carries out the detection of direct current formate field intensity; When described on-off circuit cuts out, described detector probe deenergization, stops direct current formate field intensity to detect; The described direct current formate field intensity that carries out detects and comprises: the signal gathered in induction fan blades also carries out analyzing and processing to this signal, obtains field intensity data; Described field intensity data comprise field intensity value and carry out the numbering of described detector of described collection, and described analyzing and processing comprises filtering, detection and AD conversion;
Described detector also comprises rotating fan blades and induction fan blades, and described rotating fan blades and induction fan blades are oppositely arranged up and down;
Described system also comprises ground plate, and described ground plate is connected in sequence by the sub-ground plate of more than two pieces; The center of described ground plate has for the detector mounting hole by described rotating fan blades, and described ground plate is laid in the upper surface of detector main frame by described detector mounting hole;
The junction of adjacent two described sub-ground plates is provided with supporting member, and this supporting member is connected with adjacent two described sub-ground plates respectively.
3. direct current formate field intensity detection system as claimed in claim 2, it is characterized in that, described detector comprises:
Wireless communication module, for receiving described switching on and shutting down order by wireless network;
Main control module, for according to described switching on and shutting down order, gauge tap circuit turn-on or closedown;
Power module, is connected with described wireless communication module, main control module, on-off circuit respectively, for providing working power;
Described on-off circuit, pops one's head in detector and is connected, and switches on power or deenergization for popping one's head in for described detector under the control of described main control module;
Described detector probe, for carrying out the detection of direct current formate field intensity;
Voltage transformation module, be connected with described power module, wireless communication module, main control module, on-off circuit respectively, for the standard operating voltage according to described wireless communication module, main control module, on-off circuit, the voltage of described power module is adjusted to corresponding described standard operating voltage respectively, and exports to described wireless communication module, main control module and on-off circuit.
4. direct current formate field intensity detection system as claimed in claim 3, is characterized in that, described detector probe comprises motor and digital processing circuit;
Described motor is connected with rotating fan blades, for driving described rotating fan blades to rotate when described detector probe switches on power; Described digital processing circuit, for gathering the signal in described induction fan blades, and carries out analyzing and processing to this signal and obtains field intensity data; Send described field intensity data to described main control module;
Described main control module, for being sent to described computing machine by the described field intensity data received;
Described computing machine, for after receiving described field intensity data, extracts the described field intensity value in described field intensity data, and carries out statistical study to this field intensity value, obtain field intensity eigenwert; Call the examining report template prestored, the numbering of the detector described field intensity eigenwert and described field intensity data comprised is filled up to the position of specifying in described examining report template, generates examining report and exports.
5. direct current formate field intensity detection system as claimed in claim 3, is characterized in that,
Described wireless communication module is purple honeybee Zigbee wireless communication module;
And/or,
Described on-off circuit is formed by connecting by a PNP triode, a NPN triode and resistance R1, resistance R2, resistance R3;
Described resistance R2 is series between the base stage of described PNP triode and the collector of described NPN triode, between the emitter that described resistance R1 is parallel to described PNP triode and base stage, the base stage of described NPN triode is connected with described resistance R3, the grounded emitter of described NPN triode.
6. the direct current formate field intensity detection system as described in claim 4 or 5, it is characterized in that, this system comprises calibrating installation further, and described calibrating installation comprises:
High-voltage DC power supply, produces direct current field source during for calibrating detector;
Two pieces of metal plates, are vertically mounted on insulating base, for generation of uniform electric field; Described two pieces of metal plates are connected by multiple detachable insulating pillar, and, wherein one piece of described metal plate has for the detector mounting hole by described rotating fan blades;
The both positive and negative polarity of described high-voltage DC power supply is connected on described two pieces of metal plates respectively.
7. direct current formate field intensity detection system as claimed in claim 6, is characterized in that,
Described calibrating installation also comprises the insulating supporting base for supporting detector main frame, and the top of this insulating supporting base has draw-in groove, for placing described detector main frame; Described draw-in groove is identical apart from the height of described insulating base with described detector mounting hole apart from the height of described insulating base;
And/or,
Described detachable insulating pillar, comprises that multiple one end is screw thread, the other end is the insulation rod of screw, and insulation rod described in every root cooperatively interacts to realize head and the tail by the screw thread of self with the screw of insulation rod described in another root and is connected; And the edge of described two pieces of metal plates forms relative hole, many group positions, the two ends of described detachable insulating pillar are fixing respectively inserts in relative hole, described position.
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| CN103630758B (en) * | 2013-12-09 | 2016-04-06 | 华北电力大学 | A kind of extra high voltage direct current transmission line space DC electric field measurement device |
| ES2610031B1 (en) * | 2015-09-24 | 2018-02-07 | Consejo Superior De Investigaciones Científicas (Csic) | SYSTEM AND METHOD OF PREVENTION AGAINST ELECTRIC SHOCK AND / OR ARCOS ELECTRICAL |
| CN106872793A (en) * | 2015-12-11 | 2017-06-20 | 中国电力科学研究院 | A kind of direct current formate field intensity based on wireless telecommunications, ion current density synchronized measurement system |
| CN107490728A (en) * | 2017-09-15 | 2017-12-19 | 中国电力科学研究院 | A kind of direct current formate field intensity measuring system and method based on wireless telecommunications |
| CN107728095B (en) * | 2017-10-30 | 2020-08-21 | 中国电力科学研究院有限公司 | Method for inhibiting induced voltage in particle flow generating device |
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