CN201476788U - Surveying instrument - Google Patents
Surveying instrument Download PDFInfo
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- CN201476788U CN201476788U CN 200920165683 CN200920165683U CN201476788U CN 201476788 U CN201476788 U CN 201476788U CN 200920165683 CN200920165683 CN 200920165683 CN 200920165683 U CN200920165683 U CN 200920165683U CN 201476788 U CN201476788 U CN 201476788U
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- power supply
- instrument
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- terminal
- surveying
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Abstract
The utility model relates to a surveying instrument which comprises an instrument mainframe and a photovoltaic battery. The output end of the photovoltaic battery is connected with the power supply input end of the instrument mainframe for supplying power for the instrument mainframe. The utility model not only supplies power for the instrument mainframe for a long time to facilitate the continuous work, but also has the energy saving effect.
Description
Technical field
The utility model relates to instrument of surveying and mapping, particularly, relates to a kind of instrument of surveying and mapping of optical, mechanical and electronic integration.
Background technology
At present, modern instrument of surveying and mapping mainly comprises total powerstation, electronic theodolite, digital level and GPS (Global Positioning System is called for short GPS), and it is the optical, mechanical and electronic integration product.The power supply of optical, mechanical and electronic integration instrument of surveying and mapping can be its key technical indexes a working day of continuous working (8～10 hours).Instrument of surveying and mapping not only is used for national level measurement, also is widely used in engineering survey.Because surveying work carries out basically in the open air, so instrument of surveying and mapping should accomplish as far as possible that volume is little, in light weight, easy to carry, thereby adopts ni-mh or lithium rechargeable batteries group as instrument power source usually.Yet the power supply energy of rechargeable battery set is very limited, for addressing this problem, except that improve design as far as possible to reduce the instrument power consumption, common two rechargeable battery set of every apparatus preparation, the field survey environment of considering does not have charge condition, and instrument also will be equipped with the alkaline battery module sometimes.
Utilize the normal voltage (220V/110V) of standard household power supply network that rechargeable battery set is charged to satisfy the need for electricity of instrument of surveying and mapping in the prior art scheme, have following shortcoming at least:
1. the rechargeable battery set power-on time is short, and the charging place separates when making the rechargeable battery charging instrument of surveying and mapping and can't work with the mapping place, is unfavorable for the instrument of surveying and mapping continuous working.
2. by using expensive lithium battery or increasing the power-on time that rechargeable battery set quantity increases rechargeable battery set, increase the weight of cost and instrument of surveying and mapping.
3. utilize rechargeable battery set and normal voltage that it is charged, be unfavorable for environmental protection and energy saving.
The utility model content
First purpose of the present utility model be short at power-on time in the instrument of surveying and mapping in the prior art, power supply cost is high, and the defective of the environmental protection and energy saving weak effect of power supply mode, proposes that a kind of power-on time is long, power supply cost is low, and the effective instrument of surveying and mapping of environmental protection and energy saving.
Second purpose of the present utility model is the defective of the energy-saving effect difference of and power supply mode short at power-on time in the instrument of surveying and mapping in the prior art, proposes the instrument of surveying and mapping of a kind of power-on time length and good energy-conserving effect.
In order to realize above-mentioned first purpose, the utility model provides a kind of instrument of surveying and mapping, comprises an instrument host and a photovoltaic cell, and the power input that the output terminal of photovoltaic cell connects instrument host is the instrument host power supply.
In order to realize above-mentioned second purpose, the utility model provides a kind of instrument of surveying and mapping, comprise an instrument host, a rechargeable battery, a photovoltaic cell and a charging circuit, the output terminal of photovoltaic cell is the instrument host power supply by the power input that charging circuit connects instrument host, the output terminal of photovoltaic cell also connects rechargeable battery by charging circuit, and it is the instrument host power supply that rechargeable battery connects instrument host.
Each embodiment of the utility model is this instrument host power supply by utilizing this photovoltaic cell, the defective of having avoided only utilizing in the prior art rechargeable battery set to bring for the instrument of surveying and mapping power supply, can not only be this instrument host power supply for a long time, help the instrument of surveying and mapping continuous firing, also have energy-conservation effect.
Below by drawings and Examples, the technical solution of the utility model is described in further detail.
Description of drawings
Fig. 1 is the first embodiment block scheme of the utility model instrument of surveying and mapping;
Fig. 2 is the second embodiment block scheme of the utility model instrument of surveying and mapping;
Fig. 3 is the embodiment circuit diagram of charging circuit in the utility model instrument of surveying and mapping;
Fig. 4 is the first embodiment synoptic diagram of photovoltaic cell fixed position in the utility model instrument of surveying and mapping;
Fig. 5 is the second embodiment synoptic diagram of photovoltaic cell fixed position in the utility model instrument of surveying and mapping;
Fig. 6 is the 3rd an embodiment synoptic diagram of photovoltaic cell fixed position in the utility model instrument of surveying and mapping.
Description of reference numerals:
1-6-transformer terminal 12-photovoltaic cell 13-output line
The tickler of 14-charging circuit 16-instrument host Ns-transformer
18-rechargeable battery R1-R6-resistance VT1-VT2-Switching Power Supply pipe
The primary coil of C1-C3-electric capacity T1-transformer Np-transformer
The primary coil of VD1-VD2-diode DC-power supply Nb-transformer
Specific embodiment
Fig. 1 is the first embodiment block scheme of the utility model instrument of surveying and mapping.As shown in Figure 1, present embodiment comprises photovoltaic cell 12 and instrument host 16, and the power input that the output terminal of photovoltaic cell 12 connects instrument host 16 is instrument host 16 power supplies.Like this, when instrument of surveying and mapping was worked in the open air, photovoltaic cell 12 just can directly be instrument host 16 power supplies, and photovoltaic cell 12 obtains the restriction that power supply energy is not subjected to instrument host 16 duties.
Present embodiment utilizes photovoltaic cell 12 to be instrument host 16 power supplies, the defective of having avoided only utilizing in the prior art rechargeable battery set to bring for the instrument of surveying and mapping power supply, can not only be these instrument host 16 power supplies for a long time, and the charging place is consistent with the work place of instrument host 16, help the instrument of surveying and mapping continuous firing, it is low also to reduce power supply cost, and the effect with environmental protection and energy saving.
Fig. 2 is the second embodiment block scheme of the utility model instrument of surveying and mapping.Present embodiment comprises photovoltaic cell 12, charging circuit 14, instrument host 16 and is the rechargeable battery 18 of these instrument host 16 power supplies, the output terminal of photovoltaic cell 12 connects the input end of charging circuit 14, the power input that the output terminal of charging circuit 14 connects instrument host 16 is instrument host 16 power supplies, photovoltaic cell 12 connects rechargeable battery 18 by charging circuit 14, and it is instrument host 16 power supplies that rechargeable battery 18 connects instrument host 16.
It will be appreciated by those skilled in the art that: the operating characteristic of photovoltaic cell 12 and charging circuit 14, as output voltage, output current and power etc., can change according to the actual design needs, be not limited to above-mentioned numerical value.
In the present embodiment, utilize photovoltaic cell 12 to be respectively instrument host 16 and rechargeable battery 18 power supplies by charging circuit 14, the defective of having avoided only utilizing in the prior art rechargeable battery set to bring for the instrument of surveying and mapping power supply, can not only be these instrument host 16 power supplies for a long time, help the instrument of surveying and mapping continuous firing, can also reach energy-conservation effect.
Fig. 3 is the embodiment circuit diagram of charging circuit in the utility model instrument of surveying and mapping, as shown in Figure 3, charging circuit is battery V (perhaps instrument host) charging, and it comprises power supply DC, capacitor C 1-C3, resistance R 1-R6, Switching Power Supply pipe VT1-VT2, diode VD1-VD2 and transformer T1.This transformer T1 comprises transformer Np, tickler Nb and transformer secondary output coil Ns.
The annexation of said elements is as follows: the negative pole of power supply DC connects the negative pole and the ground connection of capacitor C 1; The end of positive pole, resistance R 1 and the R2 of the positive pole connection capacitor C 1 of power supply DC and the first terminal 1 of transformer Np; Second terminal 2 of the other end of resistance R 1 and R2 and transformer Np connects the collector of Switching Power Supply pipe VT2, the collector of Switching Power Supply pipe VT1 and the collector of Switching Power Supply pipe VT1 respectively; The collector of Switching Power Supply pipe VT2 also connects the base stage of Switching Power Supply pipe VT1 and is connected to the first terminal 3 of tickler Nb by the series circuit of resistance R 3 and capacitor C 2; The grounded emitter of Switching Power Supply pipe VT1-VT2; The base stage of Switching Power Supply pipe VT2 is by resistance R 4 ground connection and connect the positive pole of diode VD2; Second terminal, 4 ground connection of tickler Nb; The first terminal 6 of transformer secondary output coil Ns connects the positive pole of diode VD1; The negative pole of diode VD1 connects an end, the positive pole of capacitor C 3 and the positive pole of battery V of resistance R 5; Second terminal 5 of transformer secondary output coil Ns, the negative pole of capacitor C 3 and the minus earth of battery V; The other end of resistance R 5 connects the negative electrode of diode VD2 and passes through resistance R 6 ground connection.The terminal of above-mentioned each transformer coil can be referred to as transformer terminal.
The principle of work of charging circuit shown in Figure 3 is summarized as follows: after adding power supply DC, electric current flows to the base stage of Switching Power Supply pipe VT1 so that after the Switching Power Supply pipe VT1 conducting, transformer Np just adds input direct voltage through resistance R 1.Switching Power Supply pipe VT1 collector current increases at transformer Np neutral line, makes Switching Power Supply pipe VT1 obtain base stage for just, launches very negative positive feedback voltage.This positive feedback voltage makes Switching Power Supply pipe VT1 saturation conduction, and transformer T1 stores magnetic energy by transformer Np.Simultaneously, capacitor C 2 chargings, along with increasing of capacitor C 2 charging voltages, the base potential of Switching Power Supply pipe VT1 is step-down gradually.Can not satisfy it and continue when saturated when the base current of Switching Power Supply pipe VT1 changes, Switching Power Supply pipe VT1 withdraws from the saturation region and enters the amplification region.The maximal value of the collector current of Switching Power Supply pipe VT1 before by magnifying state descends, and produces tickler Nb first end 3 and second end 4 and is respectively negative, positive induced voltage, and the base current of Switching Power Supply pipe VT1 is reduced.The collector current of Switching Power Supply pipe VT1 reduces thereupon, and Switching Power Supply pipe VT1 is ended rapidly.Transformer T1 energy stored offers secondary coil Ns, and second terminal 5 that secondary coil Ns produces and the voltage of the first terminal 6 are respectively negative, positive voltage behind diode VD1 rectifying and wave-filtering, obtain DC voltage to give battery V charging on capacitor C 3.When Switching Power Supply pipe VT1 ends, the voltage that the first terminal 3 of power supply DC and tickler Nb induction and second terminal 4 are respectively negative and positive is given capacitor C 2 reverse chargings through resistance R 1, R3 again, improve the base potential of Switching Power Supply pipe VT1 gradually, make Switching Power Supply pipe VT1 conducting again, the upset state that reaches capacity once more, charging circuit repeats vibration like this and goes down.
This charging circuit is that core is formed pressure limiting circuit with Switching Power Supply pipe VT2, and V is not overcharged with the protection battery, and its charging deboost is 8.4V.In the charging process of battery V, the voltage of battery V rises gradually, and when charging voltage during greater than 8.4V, diode VD2 conducting is to reduce the base current of Switching Power Supply pipe VT1 after dividing potential drop, thereby reduced the collector current of Switching Power Supply pipe VT1, reached the effect of restriction output voltage.At this moment, charging circuit has stopped the large current charge to battery V, with little electric current the voltage of battery V is maintained 8.4V.
It will be appreciated by those skilled in the art that, this charging circuit is to be that core is formed self-excited oscillation circuit with Switching Power Supply pipe VT1, the circuit that power supply DC, Switching Power Supply pipe VT1, capacitor C 2, transformer T 1 form can satisfy the function for battery V charging, other element and between annexation to act as the duty that makes charging circuit better and be provided with, can design according to actual needs.The annexation of the circuit of being made up of power supply DC, Switching Power Supply pipe VT1, capacitor C 2, transformer T1 is: the minus earth of power supply DC; The positive pole of power supply DC connects the positive pole of capacitor C 2, collector and the base stage of Switching Power Supply pipe VT1, and the first terminal 1 of transformer Np; The grounded emitter of Switching Power Supply pipe VT1; Second terminal 2 of transformer Np connects the collector of Switching Power Supply pipe VT1; The negative electrode of capacitor C 2 connects the first terminal 3 of tickler Nb; Second terminal, 4 ground connection of tickler Nb; The first terminal 6 of transformer secondary output coil Ns and second terminal 5 connect positive pole and the negative pole of battery V respectively.
Fig. 4-Fig. 6 is respectively first, second and third embodiment synoptic diagram of photovoltaic cell fixed position in the utility model instrument of surveying and mapping.
As shown in Figure 4, photovoltaic cell 12, as solar battery sheet, fixing position is the carrying handle and the left and right cover plate of instrument host.This photovoltaic cell 12 adopts the film material in the present embodiment, and as plastics, and fixing mode is adopted in the method for paste.When concrete operations, in order to be suitable for the stickup of photovoltaic cell 12, need with above-mentioned three parts, i.e. the carrying handle of instrument host and left and right cover plate are designed to the size of the suitable photovoltaic cell 12 of size on plane and plane.Simultaneously, need processing preformed hole position, to adapt to the connection of charge power supply lead, bonding use epoxy AB glue.
Consider that the position that photovoltaic cell 12 is pasted among Fig. 4 is limited, in the practical application, the power supply that the photovoltaic cell 12 at above-mentioned three positions may occur can not be satisfied the situation of instrument request for utilization, so, adopt the bigger photovoltaic cell 12 of area.As shown in Figure 5, design a support that is fixed on the instrument host carrying handle, and with photovoltaic cell 12, as solar battery sheet, be fixed on this support, correspondingly, photovoltaic cell 12 exports electric energy to be built in instrument of surveying and mapping charging circuit by output line 13, being instrument host and rechargeable battery powered by charging circuit.
Usually, be that instrument of surveying and mapping is equipped with two rechargeable batteries, a battery places in the packing case with as reserve battery.As shown in Figure 6, paste photovoltaic cell 12 at the packing case upper surface,, and in packing case, install charging circuit additional as solar battery sheet, make that the photovoltaic cell 12 of this stickup can be the reserve battery power supply by this charging circuit that installs additional, realize the function of charging for reserve battery at any time.
By above description, those skilled in the art can understand, and photovoltaic cell 12 is fixed on the position of instrument host, the quantity and the photovoltaic cell 12 fixing modes of photovoltaic cell 12 can be selected according to actual needs, is not limited to above-mentioned mode.In addition, among Fig. 4-Fig. 6 only with total powerstation as example, the present invention goes for the instrument of surveying and mapping of other optical, mechanical and electronic integration, as electronic theodolite, digital level and GPS etc.
It should be noted last that, above embodiment is only unrestricted in order to the explanation the technical solution of the utility model, although the utility model is had been described in detail with reference to preferred embodiment, those of ordinary skill in the art is to be understood that, can make amendment or be equal to replacement the technical solution of the utility model, and not break away from the spirit and scope of technical solutions of the utility model.
Claims (9)
1. an instrument of surveying and mapping comprises an instrument host, it is characterized in that, described instrument of surveying and mapping also comprises a photovoltaic cell, and the power input that the output terminal of described photovoltaic cell connects described instrument host is described instrument host power supply.
2. instrument of surveying and mapping according to claim 1 is characterized in that it also comprises a charging circuit, and the output terminal of described photovoltaic cell connects the power input of described instrument host by described charging circuit.
3. instrument of surveying and mapping according to claim 2, it is characterized in that, it also comprises a rechargeable battery, and the output terminal of described photovoltaic cell also connects described rechargeable battery by described charging circuit, and it is described instrument host power supply that described rechargeable battery connects described instrument host.
4. according to claim 2 or 3 described instrument of surveying and mappings, it is characterized in that described charging circuit comprises a power supply, a Switching Power Supply pipe, an electric capacity and a transformer; The minus earth of described power supply, the positive pole of described power supply connects the collector and the base stage of the positive pole of described electric capacity, described Switching Power Supply pipe, and the first terminal of the primary coil of described transformer; The grounded emitter of described Switching Power Supply pipe; Second terminal of the primary coil of described transformer connects the collector of described Switching Power Supply pipe; The negative electrode of described electric capacity connects the first terminal of the tickler of described transformer; The second terminal ground connection of the tickler of described transformer; The first terminal of the secondary coil of described transformer and second terminal output supply voltage.
5. according to claim 2 or 3 described instrument of surveying and mappings, it is characterized in that described charging circuit comprises a power supply, first electric capacity, second electric capacity, the 3rd electric capacity, first resistance, second resistance, the 3rd resistance, the 4th resistance, the 5th resistance, the 6th resistance, the first Switching Power Supply pipe, second switch power supply pipe, first diode, second diode and a transformer; The negative pole of described power supply connects the negative pole and the ground connection of described first electric capacity; The positive pole of described power supply connects the first terminal of the primary coil of the end of positive pole, first resistance and second resistance of described first electric capacity and described transformer; Second terminal of the other end of described first, second resistance and the primary coil of described transformer connects the collector of described second switch power supply pipe, the collector of the first Switching Power Supply pipe and the collector of the first Switching Power Supply pipe respectively; The collector of described second switch power supply pipe also connects the base stage of the described first Switching Power Supply pipe and connects the first terminal of the tickler of described transformer by the series circuit of described the 3rd resistance and second electric capacity; The grounded emitter of described first and second Switching Power Supply pipe; The base stage of described second switch power supply pipe is by described the 4th resistance eutral grounding and connect the positive pole of described second diode; The second terminal ground connection of the tickler of described transformer; The first terminal of the secondary coil of described transformer connects the positive pole of described first diode; The negative pole of described first diode connects an end of described the 5th resistance, the positive pole of the 3rd electric capacity; The equal ground connection of negative pole of second terminal of the secondary coil of described transformer and the 3rd electric capacity; The other end of described the 5th resistance connects the negative electrode of described second diode and passes through described the 6th resistance eutral grounding; The positive pole of described the 3rd electric capacity and negative pole output supply voltage.
6. require each described instrument of surveying and mapping among the 1-3 according to aforesaid right, it is characterized in that described photovoltaic cell is silicon material or film material.
7. require each described instrument of surveying and mapping among the 1-3 according to aforesaid right, it is characterized in that the output voltage of described photovoltaic cell is 9 volts to 12 volts, the peak power of described photovoltaic cell is 10 watts; The output voltage of described charging circuit is 9 volts, and the output current of described charging circuit is 0.6 ampere.
8. instrument of surveying and mapping according to claim 3, it is characterized in that, the right cover plate, one that described photovoltaic cell is fixed on the left cover of the carrying handle of described instrument host, described instrument host, described instrument host connects the support of the carrying handle of described instrument host, perhaps is used to place the packing case of described rechargeable battery.
9. instrument of surveying and mapping according to claim 8 is characterized in that, described fixed form is for pasting.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 200920165683 CN201476788U (en) | 2009-07-27 | 2009-07-27 | Surveying instrument |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 200920165683 CN201476788U (en) | 2009-07-27 | 2009-07-27 | Surveying instrument |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN201476788U true CN201476788U (en) | 2010-05-19 |
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ID=42413038
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN 200920165683 Expired - Lifetime CN201476788U (en) | 2009-07-27 | 2009-07-27 | Surveying instrument |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN201476788U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN109238250A (en) * | 2018-09-04 | 2019-01-18 | 广州市二羊计算机科技有限公司 | A kind of office system |
-
2009
- 2009-07-27 CN CN 200920165683 patent/CN201476788U/en not_active Expired - Lifetime
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN109238250A (en) * | 2018-09-04 | 2019-01-18 | 广州市二羊计算机科技有限公司 | A kind of office system |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| C56 | Change in the name or address of the patentee |
Owner name: BEIJING BOFEI INSTRUMENT CO., LTD. Free format text: FORMER NAME: BEIJING BOFEI INSTRUMENT CO., LTD. |
|
| CP01 | Change in the name or title of a patent holder |
Address after: 101102 No. 2 Xingye street, Beijing economic and Technological Development Zone Patentee after: BEIJING BOFEI INSTRUMENT CO., LTD. Address before: 101102 No. 2 Xingye street, Beijing economic and Technological Development Zone Patentee before: Beijing BoFei Instrument Co., Ltd. |
|
| CX01 | Expiry of patent term |
Granted publication date: 20100519 |
|
| CX01 | Expiry of patent term |