CN103091565A - Detecting method and detecting system for direct current combined field strength - Google Patents
Detecting method and detecting system for direct current combined field strength Download PDFInfo
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Abstract
The invention belongs to the field of direct current electricity transmission detection, and particularly relates to a detecting method and a detecting system for direct current combined field strength. Synchronous detection can be realized accurately. The detecting method for the direct current combined field strength comprises the steps of sending power-on and power-off orders to a plurality of detectors simultaneously through a wireless network; enabling each detector to receive the power-on and power-off orders through the wireless network and controlling the connection and the disconnection of a switching circuit according to the power-on and power-off orders; when the switching circuit is connected, enabling probes of the detectors to be connected with a power source to conduct a direct current combined field strength test; when the switching circuit is disconnected, enabling the probes of the detectors to be disconnected with the power source to stop the direct current combined field strength test. The detecting system for the direct current combined field strength comprises a computer and a plurality of the detectors. In addition, the detecting system further comprises a grounding plate and a calibration device.
Description
Technical field
The present invention relates to the direct current transportation detection field, relate in particular to direct current formate field intensity detection method and system.
Background technology
In recent years, China's electric utility fast development, the power technology level is advanced by leaps and bounds, and setting up of high pressure and super high voltage direct current electricity transmission net taken its place in the front ranks of the world with putting into operation, and the electromagnetic environment problem around the direct current transportation facility more and more causes people's concern.Detection technique to the environmental impact factor of direct current transportation facility also becomes the focus that electric power and environmental protection industry (epi) are paid close attention to day by day.
The direct current formate field intensity is the main electromagnetic environment parameter of DC power transmission line and current conversion station, to the carrying out of superhigh voltage DC project of transmitting and converting electricity Environmental Impact Assessment, the detection of direct current formate field intensity has been become an important process along with China.
It is a mill type direct current formate field intensity detector that power industry standard " DC converter station and circuit combination field intensity, ion flow density measurement method " (DL/T1089-2008) is recommended the detecting instrument of direct current formate field intensity.Field mill type direct current formate field intensity detector is comprised of two groups of fan sheets installing up and down, following fan sheet is the induction fan sheet, top rotating fan blades is rotated by motor-driven, thereby produce periodic induced signal on induction fan sheet below, it is AC signal, then AC signal is carried out the AD sample detecting, and then record the direct current formate field intensity.
The standard-required that above-mentioned direct current formate field intensity detects is to detect simultaneously by multiple spot, that is to say the switch that need to open simultaneously a plurality of detectors, to guarantee that a plurality of detectors synchronously carry out field intensity and detect.At present, generally all open or close by manual type the switch that arranges on detector, this just causes in multiple spot while testing process, need switching on and shutting down one by one frequently, workload is larger, and owing to being manually to carry out switching on and shutting down, also being difficult to accurate assurance and opening simultaneously a plurality of detectors to realize synchronous detection.
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 comprises:
By wireless network simultaneously to the order of a plurality of detector transmit button machine;
Make each described detector 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 close;
When described on-off circuit conducting, the detector probe switches on power, and carries out the direct current formate field intensity and detects; When described on-off circuit cut out, described detector probe deenergization stopped the direct current formate field intensity and detects.
Preferably, the described direct current formate field intensity that carries out detects and to comprise: the signal that gathers on the induction fan sheet also carries out analyzing and processing to this signal, obtains the field intensity data; Described field intensity data comprise the field intensity eigenwert and carry out the numbering of the described detector of described collection;
The method further comprises: extract the described field intensity value in described field intensity data, and this field intensity value is carried out statistical study, obtain the field intensity eigenwert; Call pre-stored examining report template, the numbering of the detector that described field intensity eigenwert and described field intensity data are comprised is filled up to the position of appointment in described examining report template, generates examining report and output.
Preferably, after obtaining described field intensity eigenwert, the method further comprises: if described field intensity eigenwert surpasses default standard limited value, point out.
The present invention also provides direct current formate field intensity detection system, comprising: computing machine and more than one detector;
Described computing machine is used for by wireless network simultaneously to the order of more than one described detector transmit button machine;
Each described detector is used 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 close; When described on-off circuit conducting, the detector probe switches on power, and carries out the direct current formate field intensity and detects; When described on-off circuit cut out, described detector probe deenergization stopped the direct current formate field intensity and detects.
Preferably, described detector comprises:
Wireless communication module is used for receiving described switching on and shutting down order by wireless network;
Main control module is used for according to described switching on and shutting down order, gauge tap circuit turn-on or close;
Power module is connected with described wireless communication module, main control module, on-off circuit respectively, is used for providing working power;
Described on-off circuit is connected with the detector probe, is used for switching on power or deenergization for described detector probe under the control of described main control module;
Described detector probe is used for carrying out the direct current formate field intensity and detects;
Voltage transformation module, be connected with described power module, wireless communication module, main control module, on-off circuit respectively, be used for the standard operation voltage according to described wireless communication module, main control module, on-off circuit, the voltage of described power module is adjusted to respectively corresponding described standard operation voltage, and export to described wireless communication module, main control module and on-off circuit.
Preferably, described detector also comprises rotating fan blades and induction fan sheet, and described rotating fan blades and induction fan sheet are oppositely arranged up and down;
Described detector probe comprises motor and digital processing circuit; Described motor is connected with rotating fan blades, is used for driving described rotating fan blades when switching on power at described detector probe and rotates; Described digital processing circuit is used for gathering the signal on described induction fan sheet, and this signal is carried out analyzing and processing obtains the field intensity data; Send described field intensity data to described main control module;
Described main control module, the described field intensity data that are used for receiving are sent to described computing machine;
Described computing machine is used for extracting the described field intensity value in described field intensity data, and this field intensity value being carried out statistical study after receiving described field intensity data, obtains the field intensity eigenwert; Call pre-stored examining report template, the numbering of the detector that described field intensity eigenwert and described field intensity data are comprised is filled up to the position of appointment in described examining report template, generates examining report and output.
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, cavity-electronics-empty type NPN triode and resistance R 1, resistance R 2, resistance R 3;
Described resistance R 2 is series between the collector of the base stage of described PNP triode and described NPN triode, described resistance R 1 is parallel between the emitter and base stage of described PNP triode, the base stage of described NPN triode is connected with described resistance R 3, the grounded emitter of described NPN triode.
Preferably, this system further comprises ground plate, and described ground plate is connected in sequence by the sub-ground plate more than two; The center of described ground plate has for the detector mounting hole by described rotating fan blades, and described ground plate is tiled in the upper surface of detector main frame by described detector mounting hole;
The junction of two adjacent 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 further comprises calibrating installation, and described calibrating installation comprises:
High-voltage DC power supply produces the direct current field source when being used for the calibration detector;
Two metal plates are vertically mounted on insulating base, for generation of uniform electric field; Described two metal plates connect by a plurality of detachable insulating pillars, and, wherein have for the detector mounting hole by described rotating fan blades on a described metal plate;
The both positive and negative polarity of described high-voltage DC power supply is connected to respectively on described two metal plates.
Preferably,
Described calibrating installation comprises that also the top of this insulating supporting base has draw-in groove for the insulating supporting base that supports the detector main frame, is used for placing described detector main frame; The height of the described insulating base of described draw-in groove distance is identical with the height of the described insulating base of described detector mounting hole distance;
And/or,
Described detachable insulating pillar comprises that a plurality of ends are that screw thread, the other end are the insulation rod of screw, and every described insulation rod cooperatively interacts to realize that with the screw of the described insulation rod of another root head and the tail are connected by the screw thread of self; And the edge of described two metal plates forms the relative holes, position of organizing more, and the two ends of described detachable insulating pillar are fixing the insertion in relative hole, described position respectively.
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 a plurality of detector transmit button machine, detector is after the switching on and shutting down order that receives the computing machine transmission, and according to this switching on and shutting down order, control the on-off circuit conducting of detector inside or close; When the on-off circuit conducting, the detector probe switches on power, and then begins to carry out the detection of direct current formate field intensity; When on-off circuit cuts out, the detector deenergization of popping one's head in, and then stop carrying out the direct current formate field intensity and detect; From the above, computing machine can by to the order of detector transmit button machine, begin to carry out field intensity with the detection trigger instrument probe and detect or stop detecting; In whole process, need not to open or close manually detector, thereby make the switching on and shutting down operation more for convenience, save artificial workload; And, to the order of a plurality of detector transmit button machine, and then guarantee that effectively a plurality of detectors detect simultaneously due to simultaneously.
Description of drawings
In order to be illustrated more clearly in the embodiment of the present invention or technical scheme of the prior art, the below will do one to the accompanying drawing of required use in embodiment or description of the Prior Art and introduce simply, apparently, accompanying drawing in the following describes is some embodiments of the present invention, for those of ordinary skills, under the prerequisite of not paying creative work, can also obtain according to these accompanying drawings other accompanying drawing.
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 on-off circuit in embodiment four;
Fig. 6 is detector complete machine structure schematic diagram in embodiment four;
Fig. 7 is the structural representation after in embodiment four, ground plate launches;
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 devices.
Embodiment
For the purpose, technical scheme and the advantage that make the embodiment of the present invention clearer, 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, rather than whole embodiment.Based on the embodiment in the present invention, those of ordinary skills belong to the scope of protection of the invention not making the every other embodiment that obtains under the creative work prerequisite.
Embodiment one
The embodiment of the present invention one provides a kind of direct current formate field intensity detection method, and referring to Fig. 1, the method comprises:
Step S101: by wireless network simultaneously to the order of a plurality of detector transmit button machine;
This detector is direct current formate field intensity detector;
Step S102: make each described detector 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 close; When described on-off circuit conducting, the detector probe switches on power, and carries out the direct current formate field intensity and detects; When described on-off circuit cut out, described detector probe deenergization stopped the direct current formate field intensity and detects.
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 a plurality of detector transmit button machine, detector and according to this switching on and shutting down order, is controlled the on-off circuit conducting of detector inside or closes after receiving the switching on and shutting down order; When the on-off circuit conducting, the detector probe switches on power, and then begins to carry out the detection of direct current formate field intensity; When on-off circuit cuts out, the detector deenergization of popping one's head in, and then stop carrying out the direct current formate field intensity and detect; From the above, can by to the order of detector transmit button machine, begin to carry out field intensity with the detection trigger instrument probe and detect or stop detecting; In whole process, need not to open or close manually detector, thereby make the switching on and shutting down operation more for convenience, save artificial workload; And, to the order of a plurality of detector transmit button machine, and then guarantee that effectively a plurality of detectors detect simultaneously due to simultaneously.
In order further to optimize the direct current formate field intensity detection method that above-described embodiment one provides, the below provides a preferred embodiment of this detection method, sees also embodiment two.
Embodiment two
The embodiment of the present invention two provides another kind of direct current formate field intensity detection method, and referring to Fig. 2, the method comprises:
Step 201: computing machine passes through wireless network simultaneously to the order of a plurality of detector transmit button machine;
Particularly, this switching on and shutting down order comprises detector start or detector shutdown;
And the direct current formate field intensity detects and often to carry out in the open air, has wired connection mode between computer on line and detector to need the cable of growing, and arranges that difficulty is larger; Therefore, in order to facilitate being connected between computing machine and a plurality of detectors, generally adopt the wireless connections mode to realize connecting, so 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 the switching on and shutting down order, controls the on-off circuit conducting of detector inside or closes;
Particularly, the disposition during the on-off circuit conducting comprises step 203-step 207, and the disposition when on-off circuit cuts out comprises step 208;
Step 203: when the on-off circuit conducting, the detector probe switches on power, and begins to gather the signal on the induction fan sheet and this signal is carried out analyzing and processing, obtains the field intensity data; These field intensity data comprise the field intensity value and carry out the numbering of the described detector of described collection;
Above-mentioned analyzing and processing is specifically carried out filtering, detection, AD conversion etc. to signal, obtains analog-and digital-field intensity value;
For example, when having a plurality of detector, can distribute to numbering of each detector, as 01,02,03 etc.; In general, have ten detectors and detect simultaneously, each detector gathers 100 data at least, and continues 30 minutes;
Step 204: each detector is sent to computing machine with the field intensity data by wireless network;
Step 205: computing machine extracts the field intensity value in the field intensity data after receiving the field intensity data, all field intensity values are carried out statistical study, obtains the field intensity eigenwert;
Wherein, the field intensity eigenwert refers to maximal value, mean value and the minimum value of field intensity, and generally is worth as maximal value with 95% in standard, and 50% value is as mean value;
Correspondingly, computing machine generally counts 50%, 80%, 95% field intensity value as the field intensity eigenwert; That is to say, after collecting 100 data, by data absolute value these data arranged sequentially from small to large, 50%, 80%, 95% field intensity value is namely the field intensity value of the 50th, 80,95 in 100 data;
Step 206: computing machine calls pre-stored examining report template, and the numbering of the described detector that described field intensity eigenwert and described field intensity data are comprised is filled up to the position of appointment in described examining report template, generates examining report and output;
Wherein, the user can deposit the examining report template in as required in advance in computing machine;
Certainly, computing machine also can be exported the raw data of field intensity data in the mode of excel form, and perhaps the mode with figure shows output;
Step 207: if the field intensity eigenwert surpasses pre-stored standard limited value in computing machine, point out;
For example, 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 80% field intensity eigenwert is no more than 15kV/m; The standard limited value that the personnel such as transmission line of electricity leap farmland, highway easily arrive the direct current formate field intensity in zone is 30kV/m, etc.;
Step 208: when on-off circuit cut out, detector probe deenergization stopped the direct current formate field intensity and detects.
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 realizes controlling detector and detect or stop detecting; Like this, need not manual type and open or close detector, operation has reduced a large amount of troublesome operation more for convenience;
And when needs were controlled a plurality of detectors and carried out detector simultaneously, computing machine can be simultaneously to the order of a plurality of detector transmit button machine, and then can effectively guarantee to detect synchronous, satisfied the synchronous detection described in direct current formate field intensity testing requirement;
Further, in prior art, when carrying out the detection of direct current formate field intensity, be merely able to count the field intensity eigenwert, but can not generate examining report; And in the present invention, pre-stored examining report template in computing machine, after extracting the field intensity eigenwert, this field intensity eigenwert and the numbering that collects the detector of this field intensity eigenwert can be filled up to the examining report template, and then export this examining report template; Further facilitate the user and carried out the detection of direct current formate field intensity, reduced the processing 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 referring to Fig. 3, this system comprises: computing machine 31 and a plurality of detector 32;
Described computing machine 31 is used for by wireless network simultaneously to a plurality of described detector 32 transmit button machine orders;
Each described detector 32 is used 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 close; When described on-off circuit conducting, the detector probe switches on power, and carries out the direct current formate field intensity and detects; When described on-off circuit cut out, described detector probe deenergization stopped the direct current formate field intensity and detects.
Three detectors 32 have been shown in Fig. 3.
In order further to optimize the direct current formate field intensity detection system that above-described embodiment three provides, the below provides a preferred embodiment of this detection system, sees also 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 described detector of ground plate, calibrating installation, computing machine and above-described embodiment, particularly, referring to Fig. 4, this system comprises: computing machine 41, a plurality of detectors 42, ground plate 43; In Fig. 4 take two detectors 42 as example;
The first wireless communication module 412 is used for by wireless network simultaneously to a plurality of detector 42 transmit button machine orders; Also be used for receiving by wireless network the field intensity data that each detector sends;
This first wireless communication module is mapped as a serial ports port in computing machine, can write the control command (as the switching on and shutting down order) of appointing to this serial ports port, and the first wireless communication module is converted into wireless signal transmission with this order and goes out; And, after receiving detector transmission field intensity data, these field intensity data are delivered to the serial ports port of appointment, computing machine fetches data from this serial ports port reads and gets final product, and each detector with self unique corresponding numbering, can identify the detector that sends these field intensity data by distinguishing the numbering of carrying in the field intensity data;
Each detector 42 comprises: power module 421, the second wireless communication modules 422, main control module 423, on-off circuit 424, detector probe 425, voltage transformation module 426;
The second wireless communication module 422 is used for the switching on and shutting down order that sends by the wireless network receiving computer; And after generating the field intensity data, detector probe 425 by cordless communication network, these field intensity data are sent to computing machine; And the second wireless communication module and main control module communicate by the serial ports of 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 a plurality of detectors 42 is from node, thereby forms Star Network;
Preferably, the second wireless communication module 422 can adopt purple honeybee Zigbee wireless communication module, generally be no more than 50 meters than its communication distance of available technology adopting wireless communication module, and adopt purple honeybee Zigbee wireless communication module, if detector not external antenna can be so that communication distance reaches 200 meters, if the detector external antenna, communication distance can reach 1000m, the radio communication between effective guarantee computing machine and detector;
On-off circuit 424 is connected with detector probe 425, is used for switching on power or deenergization for described detector probe 425 under the control of described main control module 423;
Preferably, provided a kind of preferred circuit design of on-off circuit 424 in Fig. 5, particularly:
On-off circuit 424 is formed by connecting by an electronics-cavity-electron type PNP triode, cavity-electronics-empty type NPN triode and resistance R 1, resistance R 2, resistance R 3;
Described resistance R 2 is series between the collector of the base stage of described PNP triode and described NPN triode, described resistance R 1 is parallel between the emitter and base stage of described PNP triode, the base stage of described NPN triode is connected with described resistance R 3, 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 input TTL high level, triode 504 conductings, the current potential of R2 is 0, electric current from power input 501 through resistance R 1, resistance R 2, triode 504 to ground, produce pressure drop on resistance R 2, cause triode 505 conductings, switch opens; The voltage of power output end is also 12V, at this moment switch open.When control end 503 input TTL low level, triode 504 not conductings, R2 is high level, the do not flow through DC channel of resistance R 1, resistance R 2 of power input 501, the pressure drop of resistance R 1 is zero, triode 505 not conductings, the voltage of power output end 502 is zero, and this moment, switch cut out;
Further, because power module 421 is connected and provides working power for it with the second wireless communication module 422, main control module 423, on-off circuit 424 respectively, and the standard operation voltage of second communication module, main control module, on-off circuit is not necessarily consistent with the voltage that power module provides, therefore in order to enlarge 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, the second wireless communication module 422, main control module 423, on-off circuit 424 respectively, be used for the standard operation voltage according to described the second wireless communication module, main control module, on-off circuit, the voltage of described power module is adjusted to respectively corresponding described standard operation voltage, and export to described the second wireless communication module, main control module and on-off circuit;
For example, power module is 5V to the voltage of the second wireless communication module output, and the voltage of exporting to main control module is 3.3V, and the voltage of exporting to on-off circuit is 12V;
Referring to Fig. 6, detector 42 also comprises rotating fan blades 427, induction fan sheet 428 and detector main frame 429, and described rotating fan blades 427 and induction fan sheet 428 are oppositely arranged up and down; And the above-mentioned module of detector or circuit all are 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, is used for driving described rotating fan blades 427 when switching on power at described detector probe and rotates; Described digital processing circuit is used for gathering the signal on described induction fan sheet 428, this signal is carried out analyzing and processing obtain the 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 the upper surface that this ground plate is used for riding over the detector main frame when measuring field intensity is as the ground connection reference planes, and the position of ground plate 43 as shown in Figure 6; Should be 1m*1m according to the size of the ground plate described in the testing requirement of present direct current formate field intensity, and the area of ground plate of the prior art is generally 70cm*70cm, this can not satisfy the requirement of standard fully; Also have the size of the ground plate of sampling in some schemes really to be 1m*1m, but be inconvenient to carry, for example the screening machine width in most airport and railway station is 1m, and ground plate volume after packing is too large, can't pass through screening machine; Therefore in the present embodiment, ground plate has been done improvement, particularly,
Described ground plate is connected in sequence by the sub-ground plate more than two; The center of described ground plate has for the detector mounting hole by described rotating fan blades, and described ground plate is tiled in the upper surface of detector main frame by described detector mounting hole; And sub-ground plate is sheet metal, for example aluminium sheet;
The junction of two adjacent described sub-ground plates is provided with supporting member, and this supporting member is connected with adjacent two described sub-ground plates respectively;
Preferably, described sub-ground plate more than two is connected to gemel connection successively; Particularly, referring to Fig. 7 and Fig. 8, ground plate comprises four 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 adjacent sub-ground plates are connected with a secondary hinge in these three junctions like this; Wherein, have a plurality of fixed orifices on the fan sheet of two of the left and right of every secondary hinge, corresponding adjacent two sub-ground plate edges also have the fixed orifice identical with fixed orifice quantity on hinge, and cooperatively interact to realize being connected by rivet and fixed orifice with adjacent two sub-ground plates respectively at two of the left and right of junction hinge fan sheet;
Like this, as shown in Figure 7, four 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 the detector main frame can't pass through, when ground plate is on being installed to the detector main frame like this, upper surface and the ground plate of detector main frame are positioned at same plane, not only guarantee ground plate and detector main frame good contact, and the ground plate center can obtain the anchorage force of detector main frame again, guarantee the stability of installing in testing process;
As shown in Figure 8, when four sub-ground plates were folding, the two secondary hinges that are on same axis were positioned at same plane, another secondary hinge is positioned at another plane perpendicular with this plane, like this, every sub-ground plate is folding towards the hinge installed surface, can form portable small size;
In addition, ground plate also comprises a plurality of supporting members 703, is used 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 adjacent sub-ground plates, is connected with adjacent two sub-ground plates respectively; 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, and supporting member and detector main frame are all placed on the ground;
preferably, referring to 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 enters fixed orifice from the below riveting, and two adjacent sub-ground plates all form the screw socket with the screw lock coupling in the junction, the threaded portion of screw lock screws in correspondingly in screw socket, like this, screw lock namely is connected on two adjacent sub-ground plates, make supporting member have anchorage force to ground plate, add after ground plate is arranged on detector, the anchorage force that the detector main frame produces ground plate, two kinds of anchorage force balances the gravity of ground plate, make ground plate maintenance level, improved the 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 and this screw socket coupling, make dismountable hand tighten screw can screw in this screw socket, so facilitate the true altitude of regulating supporting member, can compensate the out-of-flatness on ground, guarantee the ground plate horizontal positioned, further improve measuring accuracy;
In addition, ground plate also comprises for the ground pricker 704 that guarantees the reliable ground effect, when field strength measurement, in these ground pricker 704 insertion the earth, realizes good earth, and this ground pricker can adopt electric conductivity copper rod preferably, and the length of copper rod can be 40cm; Ground plate comprises that also this earth lead can be copper cash for the earth lead 705 of reliable ground when measuring formate field intensity, and the length of copper cash can be 5m; Wherein, an end of copper cash is connected with one of them supporting member, and the other end connects the ground pricker;
In the present embodiment, in order effectively to 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; Present calibrating installation comprises two parallel placements and is parallel to the metal plate on ground, calculates to get field intensity according to the distance between the numerical value that is applied to two voltages on metal plate and two metal plates; Yet, because the self gravitation of two metal plates causes metal plate deformation, make the actual range of two metal plate centers be not equal to the distance of edge, that is to say that actual range is different from the calculating distance that records from edge, thereby cause actual field intensity and the theoretical field intensity that calculates that deviation is arranged, cause calibration error; Therefore in the present embodiment, for the defective that above-mentioned calibrating installation brings, provide a kind of calibrating installation that has improved, particularly, this calibrating installation comprises:
High-voltage DC power supply produces the direct current field source when being used for the calibration detector;
Two metal plates are vertically mounted on insulating base, for generation of uniform electric field; Described two metal plates connect by a plurality of detachable insulating pillars, and, wherein have for the detector mounting hole by described rotating fan blades on a described metal plate;
The both positive and negative polarity of described high-voltage DC power supply is connected to respectively on described two metal plates.
Preferably, referring to 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, produces like this uniform electric field between the pole plate of left and right; Wherein, the left and right pole plate is that the identical square-shaped metal of size is dull and stereotyped; And, the detector mounting hole be shaped as circle, be arranged on the center of right pole plate;
Calibrating installation also comprises for the insulating supporting base 104 that supports the detector main frame, this insulating supporting base 104 be shaped as rectangular parallelepiped, cut away a cylinder at the top of rectangular parallelepiped, and then form draw-in groove 105, be used for placing described detector main frame; The height of the described insulating base of described draw-in groove distance is identical with the height of the described insulating base of described detector mounting hole distance; Like this, when the rotating fan blades on detector passed the detector mounting hole of right pole plate center, the detector main frame just in time was stuck in draw-in groove, makes the detector main frame reliably contact with right pole plate, to realize good earth; And rotating fan blades is by the detector mounting hole time, 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, forms equally distributed a plurality of bar-shaped troughs on it, is used for two metal plates are vertically inserted bar-shaped trough, to fix two metal plates;
In Figure 10, detachable insulation column 107 is seven, is arranged on respectively the edge of two metal plates; Described detachable insulating pillar comprises that a plurality of ends are that screw thread, the other end are the insulation rod of screw, and every described insulation rod cooperatively interacts to realize that with the screw of the described insulation rod of another root head and the tail are connected by the screw thread of self; And the edge of described two metal plates forms the relative holes, position of organizing more, and the two ends of described detachable insulating pillar are fixing the insertion in relative hole, described position respectively, makes two metal plates realize connecting by insulation column;
Like this, quantity that can be by regulating the insulation rod that every detachable insulation column comprises and/or, the length of insulation rod can be adjusted two distances between metal plate, adjusting operation more for convenience;
The direct current formate field intensity detection system that the embodiment of the present invention four provides, computing machine can be 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 close, and begins to carry out field intensity and detects or stop field intensity and detect thereby can control the detector probe; Like this, need not manual type and open or close detector, operation has improved work efficiency more for convenience, has reduced a large amount of troublesome operation;
And, when needs were controlled a plurality of detectors and detected simultaneously, computing machine can be simultaneously to the order of a plurality of detector transmit button machine, and then can effectively guarantee to detect synchronous, satisfy the synchronous detection described in direct current formate field intensity testing requirement, lay a good foundation for realizing synchronous data collection;
In addition, during detection arrangement, be generally will be manually with the detector start in the prior art, the running of driven by motor rotating fan blades is laid ground plate after being well placed detector again, also needs first to pack up ground plate and detect after finishing, then closes the motor of detector; This moment is because rotating fan blades directly is exposed to the outside, after motor is opened, in the situation that the fan sheet collision of fan sheet rotation loading and unloading ground plate in may causing ground plate and rotation causes even personal safety accident of instrument damage; And in the present invention, can after being well placed detector and ground plate, confirm that safety just makes the driven by motor rotating fan blades rotate by wireless mode open detection instrument; After detecting end, can first close detector by wireless mode makes rotating fan blades stop operating, the detector in the situation that safety is removed stage makeup and costume, thereby avoided existing detector in the situation that the instrument that electric motor starting, the rotation installation of fan sheet and the instrument of removing stage makeup and costume bring reaches safely personal safety hidden danger, made the direct current formate field intensity detect and become safe, efficient, convenient;
Further, computer-internal has template memory module and report generation template, can automatically generate examining report according to the field intensity data that receive, and this is also the not available function of direct current formate field intensity detection system of the prior art;
Further, in prior art, when carrying out the detection of direct current formate field intensity, be merely able to count the field intensity eigenwert, but can not generate examining report; And in the present invention, pre-stored examining report template in computing machine, after extracting the field intensity eigenwert, this field intensity eigenwert and the numbering that collects the detector of this field intensity eigenwert can be filled up to the examining report template, and then export this examining report template; Further facilitated the user and carried out the detection of direct current formate field intensity, saved the troublesome operation of later stage establishment examining report, and can namely obtain examining report at Test Field;
In addition, ground plate is to be spliced by plural sub-ground plate, and is of a size of 1m*1m, therefore satisfies the detection of direct current formate field intensity to the requirement of ground plate size; When needs carry out ground plate being launched when field intensity detects, when not needing to carry out the field intensity detection, 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 metal plate horizontal positioned in prior art, and then the center of two metal plates is because Action of Gravity Field causes distortion, thereby produces calibration error; In the present invention, two metal plates in calibrating installation are placed perpendicular to ground, avoid the situation of above-mentioned metal plate distortion, have improved the accuracy of calibration;
In addition, fixing problem when the insulating supporting base in calibrating installation has solved calibration, and also circular hole and detector upper surface that right pole plate is opened be positioned at same plane, can further reduce the error that detects.
One of ordinary skill in the art will appreciate that: all or part of step that realizes said method embodiment can be completed by the hardware that programmed instruction is correlated with, aforesaid program can be stored in a computer read/write memory medium, this program is carried out the step that comprises said method embodiment when carrying out; And aforesaid storage medium comprises: the various media that can be program code stored such as ROM, RAM, magnetic disc or CD.
It should be noted that at last: above embodiment only in order to technical scheme of the present invention to be described, is not intended to limit; Although with reference to previous embodiment, the present invention is had been described in detail, those of ordinary skill in the art is to be understood that: it still can be modified to the technical scheme that aforementioned each embodiment puts down in writing, and perhaps part technical characterictic wherein is equal to replacement; And these modifications or replacement do not make the essence of appropriate technical solution break away from the spirit and scope of various embodiments of the present invention technical scheme.
Claims (10)
1. direct current formate field intensity detection method, is characterized in that, comprising:
By wireless network simultaneously to the order of a plurality of detector transmit button machine;
Make each described detector 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 close;
When described on-off circuit conducting, the detector probe switches on power, and carries out the direct current formate field intensity and detects; When described on-off circuit cut out, described detector probe deenergization stopped the direct current formate field intensity and detects.
2. direct current formate field intensity detection method as claimed in claim 1, is characterized in that, the described direct current formate field intensity that carries out detects and to comprise: the signal that gathers on the induction fan sheet also carries out analyzing and processing to this signal, obtains the field intensity data; Described field intensity data comprise the field intensity value and carry out the numbering of the described detector of described collection;
The method further comprises: extract the described field intensity value in described field intensity data, and this field intensity value is carried out statistical study, obtain the field intensity eigenwert; Call pre-stored examining report template, the numbering of the detector that described field intensity eigenwert and described field intensity data are comprised is filled up to the position of appointment in described examining report template, generates examining report and output.
3. direct current formate field intensity detection method as claimed in claim 2, is characterized in that, after obtaining described field intensity eigenwert, the method further comprises: if described field intensity eigenwert surpasses default standard limited value, point out.
4. direct current formate field intensity detection system, is characterized in that, comprising: computing machine and a plurality of detector;
Described computing machine is used for by wireless network simultaneously to the order of a plurality of described detector transmit button machine;
Each described detector is used 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 close; When described on-off circuit conducting, the detector probe switches on power, and carries out the direct current formate field intensity and detects; When described on-off circuit cut out, described detector probe deenergization stopped the direct current formate field intensity and detects.
5. direct current formate field intensity detection system as claimed in claim 4, is characterized in that, described detector comprises:
Wireless communication module is used for receiving described switching on and shutting down order by wireless network;
Main control module is used for according to described switching on and shutting down order, gauge tap circuit turn-on or close;
Power module is connected with described wireless communication module, main control module, on-off circuit respectively, is used for providing working power;
Described on-off circuit is connected with the detector probe, is used for switching on power or deenergization for described detector probe under the control of described main control module;
Described detector probe is used for carrying out the direct current formate field intensity and detects;
Voltage transformation module, be connected with described power module, wireless communication module, main control module, on-off circuit respectively, be used for the standard operation voltage according to described wireless communication module, main control module, on-off circuit, the voltage of described power module is adjusted to respectively corresponding described standard operation voltage, and export to described wireless communication module, main control module and on-off circuit.
6. direct current formate field intensity detection system as claimed in claim 5, is characterized in that, described detector also comprises rotating fan blades and induction fan sheet, and described rotating fan blades and induction fan sheet are oppositely arranged up and down;
Described detector probe comprises motor and digital processing circuit; Described motor is connected with rotating fan blades, is used for driving described rotating fan blades when switching on power at described detector probe and rotates; Described digital processing circuit is used for gathering the signal on described induction fan sheet, and this signal is carried out analyzing and processing obtains the field intensity data; Send described field intensity data to described main control module;
Described main control module, the described field intensity data that are used for receiving are sent to described computing machine;
Described computing machine is used for extracting the described field intensity value in described field intensity data, and this field intensity value being carried out statistical study after receiving described field intensity data, obtains the field intensity eigenwert; Call pre-stored examining report template, the numbering of the detector that described field intensity eigenwert and described field intensity data are comprised is filled up to the position of appointment in described examining report template, generates examining report and output.
7. direct current formate field intensity detection system as claimed in claim 5, 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 an electronics-cavity-electron type PNP triode, cavity-electronics-empty type NPN triode and resistance R 1, resistance R 2, resistance R 3;
Described resistance R 2 is series between the collector of the base stage of described PNP triode and described NPN triode, described resistance R 1 is parallel between the emitter and base stage of described PNP triode, the base stage of described NPN triode is connected with described resistance R 3, the grounded emitter of described NPN triode.
8. direct current formate field intensity detection system as described in claim 6 or 7, is characterized in that, this system further comprises ground plate, and described ground plate is connected in sequence by the sub-ground plate more than two; The center of described ground plate has for the detector mounting hole by described rotating fan blades, and described ground plate is tiled in the upper surface of detector main frame by described detector mounting hole;
The junction of two adjacent described sub-ground plates is provided with supporting member, and this supporting member is connected with adjacent two described sub-ground plates respectively.
9. direct current formate field intensity detection system as described in claim 6 or 7, is characterized in that, this system further comprises calibrating installation, and described calibrating installation comprises:
High-voltage DC power supply produces the direct current field source when being used for the calibration detector;
Two metal plates are vertically mounted on insulating base, for generation of uniform electric field; Described two metal plates connect by a plurality of detachable insulating pillars, and, wherein have for the detector mounting hole by described rotating fan blades on a described metal plate;
The both positive and negative polarity of described high-voltage DC power supply is connected to respectively on described two metal plates.
10. direct current formate field intensity detection system as claimed in claim 9, is characterized in that,
Described calibrating installation comprises that also the top of this insulating supporting base has draw-in groove for the insulating supporting base that supports the detector main frame, is used for placing described detector main frame; The height of the described insulating base of described draw-in groove distance is identical with the height of the described insulating base of described detector mounting hole distance;
And/or,
Described detachable insulating pillar comprises that a plurality of ends are that screw thread, the other end are the insulation rod of screw, and every described insulation rod cooperatively interacts to realize that with the screw of the described insulation rod of another root head and the tail are connected by the screw thread of self; And the edge of described two metal plates forms the relative holes, position of organizing more, and the two ends of described detachable insulating pillar are fixing the insertion in relative hole, described position respectively.
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