CN215768733U - Portable infrared meter reading system for checking field electricity stealing - Google Patents
Portable infrared meter reading system for checking field electricity stealing Download PDFInfo
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- CN215768733U CN215768733U CN202121925516.9U CN202121925516U CN215768733U CN 215768733 U CN215768733 U CN 215768733U CN 202121925516 U CN202121925516 U CN 202121925516U CN 215768733 U CN215768733 U CN 215768733U
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Abstract
The utility model discloses a portable infrared meter reading system for checking field electricity stealing, which comprises a mobile terminal, a USB data wire, an infrared receiving and transmitting circuit, a first back clip, a second back clip and a supporting rod, wherein the first back clip is connected with the second back clip; the first back clamp and the second back clamp are respectively arranged at two ends of the supporting rod in a detachable connection mode; the first back clip and the second back clip are both provided with symmetrically arranged elastically retractable clamping arms for clamping the mobile terminal; the infrared receiving and transmitting circuit is arranged in the first back clamp, the first back clamp is provided with a USB socket, and the mobile terminal is connected with the infrared receiving and transmitting circuit through the USB connecting line and the USB socket in sequence. The utility model adopts the modular design, can meet the meter reading requirements of different occasions, and has the advantages of simple structure, low cost, convenient maintenance and the like.
Description
Technical Field
The utility model relates to a meter reading system.
Background
In recent years, the demand of social production and people's life on electric energy is gradually increased, and from dispute cases related to electricity utilization in China, the prominent problem is mainly electricity stealing, and the electricity stealing phenomenon is in a trend of rising year by year.
With the deep popularization and application of the metering automation system of the southern power grid company, the electricity stealing diagnosis model can find suspected electricity stealing users in time. However, electricity stealing operation and maintenance personnel often need to carry special palm computers and other equipment to check and evidence obtaining on site, and some sites have the problems of scattered installation, unreasonable position and the like of the electric energy meter, and for some electric energy meters which are hung higher or are not beneficial to short-distance collection, meter reading personnel need to climb a pole, use a ladder and other methods, so that great troubles are brought to the electricity stealing inspection personnel to obtain evidence on site.
The infrared communication technology is mature, the cost is low, the operation is simple and convenient, the reliability is high, and the like, so that the infrared communication technology is widely applied to the field of electric energy data acquisition of the on-site electric energy meter.
Most of the traditional infrared meter reading systems integrate an infrared meter reading module inside a handheld terminal as special equipment, so that the traditional infrared meter reading systems are complex in structure, high in cost, complex in operation, high in meter reading difficulty and not beneficial to later-stage fault maintenance.
In order to overcome these problems, in the prior art, a scheme for performing infrared meter reading by means of a mobile terminal (such as a smart phone) is proposed. For example, in the patent of the utility model with publication number CN110987194A, "infrared inspection instrument", it is proposed that a data line is used to connect a terminal with a special acquisition device, the two are respectively installed at two ends of a supporting rod, and the data is finally transmitted to the terminal by reading the meter through an infrared receiver in the acquisition device. Although this kind of structure separates terminal and infrared collection system, and the cost is reduced has simplified the operation, because collection system fixes in the bracing piece upper end, and is far away with the mounted position at terminal, so only be applicable to the meter reading of eminence ammeter, to the ammeter of installing in narrow and small space, the bracing piece can hinder normally to check meter, can only two-hand operation even, and the operation is inconvenient. As another example, in the scheme disclosed in the utility model patent "mobile back splint terminal" with publication number CN210567067U, the detection and acquisition device is directly integrated into the back splint of the mobile terminal, and this structure is small and flexible, but cannot be applied to the occasions of high altitude and remote meter reading.
SUMMERY OF THE UTILITY MODEL
The utility model provides a portable infrared meter reading system for checking field electricity stealing, which aims to: the adaptability and the flexibility are improved, and the requirement of remote meter reading in narrow space and high place is met.
The technical scheme of the utility model is as follows:
a portable infrared meter reading system for checking field electricity stealing comprises a mobile terminal, a USB data wire, an infrared receiving and transmitting circuit, a first back clamp, a second back clamp and a supporting rod, wherein the first back clamp is connected with the second back clamp;
the first back clamp and the second back clamp are respectively arranged at two ends of the supporting rod in a detachable connection mode;
the first back clip and the second back clip are both provided with symmetrically arranged elastically retractable clamping arms for clamping the mobile terminal;
the infrared receiving and transmitting circuit is arranged in the first back clamp, the first back clamp is provided with a USB socket, and the mobile terminal is connected with the infrared receiving and transmitting circuit through the USB connecting line and the USB socket in sequence.
As a further improvement of the meter reading system: the infrared transceiver circuit comprises a first conversion module, a second conversion module, a waveform generation module, an infrared emission module and an infrared receiving module;
the USB socket is connected with the infrared emission module sequentially through the first conversion module, the second conversion module and the waveform generation module;
the infrared receiving module is connected with the second conversion module;
the first conversion module is used for realizing the interconversion of the USB signal and the serial port signal;
the second conversion module is used for realizing the mutual conversion of the serial port signal and the TTL signal;
the waveform generation module is used for converting the TTL signal into a waveform signal;
the infrared transmitting module is used for transmitting an infrared signal to the electric energy meter;
the infrared receiving module is used for receiving an infrared signal sent by the electric energy meter and converting the infrared signal into a TTL signal.
As a further improvement of the meter reading system: the first back clamp and the second back clamp respectively comprise a shell and two groups of clamping arms;
the clamping arm is connected with the shell in a sliding fit mode so as to realize the movement of the clamping arm relative to the shell;
the inner ends of the two clamping arms are respectively connected with the shell through springs, and the springs are used for driving the clamping arms to be closed to clamp the mobile terminal.
As a further improvement of the meter reading system: the shell comprises a bottom plate, and a front guide column and a rear guide column are respectively arranged on the left side and the right side of the bottom plate; the two clamping arms are arranged symmetrically left and right; each clamping arm comprises a flat plate and a vertical plate vertically connected to the outer edge of the flat plate; the flat plate is provided with a front guide groove, a rear guide groove, a left guide groove and a right guide groove, and the guide grooves are matched with the guide columns.
As a further improvement of the meter reading system: the shell further comprises a mounting plate placed on the guide post and a screw penetrating through the mounting plate and connected with the threaded hole in the top of the guide post.
As a further improvement of the meter reading system: the mounting plate in the first back splint is made of insulating materials, and the infrared receiving and transmitting circuit is mounted on the mounting plate.
As a further improvement of the meter reading system: the clamping arm is characterized in that a groove is formed in the inner side wall of the vertical plate of the clamping arm, and the groove gradually inclines towards the shell from the root to the outer end of the vertical plate.
As a further improvement of the meter reading system: the housing further includes an upper cover mounted on the base plate.
As a further improvement of the meter reading system: external threads are arranged at two ends of the supporting rod, connecting seats are arranged on the first back clamp and the second back clamp, and threaded holes matched with the external threads are formed in the connecting seats; and nuts are respectively arranged at the external threads.
Compared with the prior art, the utility model has the following beneficial effects: (1) the product adopts a modular design, the two ends of the supporting rod are respectively provided with a detachable back clamp, wherein the back clamp at one end is provided with an infrared receiving and transmitting circuit, the back clamp at the other end is a common back clamp, when a high-altitude ammeter is read, the mobile terminal is fixed on the second back clamp at the lower end, the meter reading is realized through the first back clamp at the upper end, when the meter reading is carried out in a narrow space, the first back clamp can be detached from the supporting rod, and the mobile terminal is directly installed on the first back clamp for meter reading, so that the requirements of different occasions are met; (2) the two ends of the supporting rod are connected with the connecting seat in a mode of external threads and nuts, the angle of the back clamp part relative to the supporting rod can be changed by adjusting the position of the nuts, and the meter reading device is suitable for occasions with lateral meter reading; (3) the device has simple structure and low cost, and is convenient to maintain only by maintaining and replacing the infrared receiving and transmitting circuit after the fault occurs.
Drawings
FIG. 1 is a schematic diagram of a high electric meter reading structure using the present invention;
FIG. 2 is a schematic structural diagram of a meter reading operation performed on an electricity meter in a narrow space by using the utility model;
FIG. 3 is a cross-sectional view of a back clip, the first back clip being identical in construction to the second back clip except that the first back clip carries the infrared transceiver circuitry shown in the figure and the second back clip does not carry the infrared transceiver circuitry;
fig. 4 is an electrical schematic diagram of an infrared transceiver circuit.
Detailed Description
The technical scheme of the utility model is explained in detail in the following with the accompanying drawings:
referring to fig. 1, a portable infrared meter reading system for checking field electricity stealing comprises a mobile terminal 1, a USB data wire 4, an infrared transceiver circuit 5, a first back clip 2, a second back clip 3 and a support rod 7.
The first back clamp 2 and the second back clamp 3 are respectively arranged at two ends of the support rod 7 in a detachable connection mode.
Specifically, the supporting rod 7 may be fixed in length, or may be telescopic. External threads are arranged at two ends of the supporting rod 7, connecting seats 23-8 are arranged on the first back clamp 2 and the second back clamp 3, and threaded holes matched with the external threads are formed in the connecting seats 23-8; and nuts 6 are respectively arranged at the external threads. During connection, the nut 6 is firstly installed on the external thread, then the external thread is connected with the threaded holes of the connecting seats 23-8, after the relative angles of the two back clamps are adjusted, the nut 6 is rotated to enable the back clamps to abut against the corresponding connecting seats 23-8, the fastening and anti-loosening effects are achieved, and the angle of the back clamps relative to the supporting rod 7 is prevented from changing.
As shown in fig. 1 to 3, the first back clip 2 and the second back clip 3 each have a housing 23-1 and a symmetrically arranged elastically retractable holding arm 23-2 for holding the mobile terminal 1. The gripping arm 23-2 is connected to the housing 23-1 by a sliding fit to effect movement of the gripping arm 23-2 relative to the housing 23-1. The inner ends of the two clamping arms 23-2 are respectively connected with the shell 23-1 through springs 23-6, and hooks are arranged at two ends of the springs 23-6 to realize hooking and used for driving the clamping arms 23-2 to fold to clamp the mobile terminal 1.
Specifically, the housing 23-1 includes a bottom plate 23-1-2 at the back, and the connecting socket 23-8 is disposed at the back side of the bottom plate 23-1-2. The left side and the right side of the bottom plate 23-1-2 are respectively provided with a front guide column 23-3 and a rear guide column 23-3; the two clamping arms 23-2 are arranged symmetrically left and right; each clamping arm 23-2 comprises a flat plate and a vertical plate vertically connected to the outer edge of the flat plate; the flat plate is respectively provided with a front guide groove, a rear guide groove, a left guide groove and a right guide groove, and the guide grooves are matched with the guide columns 23-3. The holding arm 23-2 moves left and right under the action of the guide column 23-3.
The housing 23-1 further includes a mounting plate 23-5 placed on the guide post 23-3 and a screw 23-4 passing through the mounting plate 23-5 to be coupled to a screw hole at the top of the guide post 23-3.
The housing 23-1 further includes an upper cover 23-1-1 mounted on the bottom plate 23-1-2.
Furthermore, a groove is formed in the inner side wall of the vertical plate of the clamping arm 23-2, and the groove gradually inclines towards the shell 23-1 from the root to the outer end of the vertical plate, so that the mobile terminal 1 is prevented from falling off.
The infrared receiving and transmitting circuit 5 is arranged in the first back clamp 2, the first back clamp 2 is provided with a USB socket 23-7, and the mobile terminal 1 is connected with the infrared receiving and transmitting circuit 5 sequentially through a USB connecting line and the USB socket 23-7.
Further, as shown in fig. 3 and 4, the mounting plate 23-5 of the first back clip 2 is made of an insulating material, and the infrared transceiver circuit 5 is mounted on the mounting plate 23-5. The infrared transceiver circuit 5 comprises a first conversion module 5-1, a second conversion module 5-2, a waveform generation module 5-3, an infrared emission module 5-4 and an infrared receiving module 5-5.
The USB socket 23-7 is connected with the infrared emission module 5-4 sequentially through the first conversion module 5-1, the second conversion module 5-2 and the waveform generation module 5-3; the infrared receiving module 5-5 is connected with the second conversion module 5-2.
The first conversion module 5-1 adopts a CH340T chip for realizing the interconversion between the USB signal and the serial port signal.
The second conversion module 5-2 adopts an MAX232 chip to complete the conversion between the serial port signal and the TTL level signal.
The waveform generating module 5-3 is implemented by 89C51 or NE555 circuit, and is used for converting TTL signals into 38KHZ waveform signals.
The infrared transmitting module 5-4 is used for transmitting infrared signals to the electric energy meter, and the infrared meter reading distance is larger than 3.6 meters.
The infrared receiving module 5-5 is used for receiving infrared signals sent by the electric energy meter, and can directly output TTL level signals by adopting an integrated infrared receiving head.
The USB socket 23-7 is connected with the USB port of the mobile terminal 1 through a data line, so that a communication function is realized, meanwhile, the infrared receiving and transmitting circuit 5 can be powered, the power supply voltage is 2.7-5.5V, and the power supply current is 50mA during meter reading.
The mobile terminal 1 is a smart phone, and may also be other operating devices with USB interfaces. The mobile terminal 1 integrates a meter reading program conforming to the DLT645 protocol, acquires data (including meter codes, loads and the like) through a data line, stores the data locally, and can display the data on a self-contained display screen or send the data to a main station through a self-contained wireless module. In the prior art, a scheme of reading a meter by using the mobile terminal 1 in combination with an external infrared module is already ubiquitous, and obviously, a meter reading program and related drivers inside the mobile terminal 1 are the prior art and are not described herein again.
The bottom plate 23-1-2 of the first back clip 2 is also required to be provided with a corresponding opening for infrared signals to pass through.
As shown in fig. 1, for an overhead power meter, the mobile terminal 1 can be fixed on the second back clip 3, and then the USB data cable 4 is used to connect the mobile terminal 1 with the USB socket 23-7 of the first back clip 2. The operator lifts the support rod 7, aligns the first back clamp 2 with the electric energy meter, and checks the meter. During meter reading, the mobile terminal 1 sends out a signal, the USB signal is sent to the infrared receiving and transmitting circuit 5 through the USB data line 4 and is converted into a TTL signal through the first conversion module 5-1 and the second conversion module 5-2, then the TTL signal is converted into a 38KHZ waveform signal through the modulation circuit of the waveform generation module 5-3, and finally the TTL signal is sent to the electric energy meter through the infrared emission module 5-4. After the infrared signal sent by the electric energy meter is received by the infrared receiving module 5-5, the infrared signal is converted into an RS232 signal by the second conversion module 5-2, then the signal is converted into a USB signal by the first conversion module 5-1, and finally the USB signal is transmitted to the mobile terminal 1 through the data line.
As shown in fig. 2, for the electric energy meter in a low and narrow space, the mobile terminal 1 is directly fixed on the first back clip 2 and connected by the USB data line 4. At the same time, the connection between the first back clip 2 and the support bar 7 needs to be broken. An operator only needs to hold the first back clamp 2 and the mobile terminal 1 by hand to align the electric energy meter, and the meter reading operation can be completed. The signal transmission and processing in the meter reading process are the same as the above case.
Claims (9)
1. The utility model provides a portable infrared meter reading system for on-spot electricity stealing inspection, includes mobile terminal (1), USB data line (4) and infrared transceiver circuit (5), its characterized in that: the device also comprises a first back clip (2), a second back clip (3) and a support rod (7);
the first back clamp (2) and the second back clamp (3) are respectively arranged at two ends of the supporting rod (7) in a detachable connection mode;
the first back clip (2) and the second back clip (3) are both provided with symmetrically arranged elastically retractable clamping arms (23-2) for clamping the mobile terminal (1);
the infrared receiving and transmitting circuit (5) is arranged in the first back clamp (2), the first back clamp (2) is provided with a USB socket (23-7), and the mobile terminal (1) is connected with the infrared receiving and transmitting circuit (5) sequentially through a USB connecting wire and the USB socket (23-7).
2. The portable infrared meter reading system for auditing the field of electricity stealing of claim 1, further comprising: the infrared transceiving circuit (5) comprises a first conversion module (5-1), a second conversion module (5-2), a waveform generation module (5-3), an infrared transmitting module (5-4) and an infrared receiving module (5-5);
the USB socket (23-7) is connected with the infrared emission module (5-4) sequentially through the first conversion module (5-1), the second conversion module (5-2) and the waveform generation module (5-3);
the infrared receiving module (5-5) is connected with the second conversion module (5-2);
the first conversion module (5-1) is used for realizing the mutual conversion of the USB signal and the serial port signal;
the second conversion module (5-2) is used for realizing the mutual conversion of the serial port signal and the TTL signal;
the waveform generation module (5-3) is used for converting the TTL signal into a waveform signal;
the infrared emission module (5-4) is used for emitting infrared signals to the electric energy meter;
the infrared receiving module (5-5) is used for receiving the infrared signal sent by the electric energy meter and converting the infrared signal into a TTL signal.
3. The portable infrared meter reading system for checking the field stealing of electricity according to claim 1 or 2, wherein: the first back clamp (2) and the second back clamp (3) both comprise a shell (23-1) and two groups of clamping arms (23-2);
the clamping arm (23-2) is connected with the shell (23-1) in a sliding fit mode so as to realize the movement of the clamping arm (23-2) relative to the shell (23-1);
the inner ends of the two clamping arms (23-2) are respectively connected with the shell (23-1) through springs (23-6), and the springs (23-6) are used for driving the clamping arms (23-2) to be folded to clamp the mobile terminal (1).
4. The portable infrared meter reading system for auditing the field of electricity stealing of claim 3, further comprising: the shell (23-1) comprises a bottom plate (23-1-2), and the left side and the right side of the bottom plate (23-1-2) are respectively provided with a front guide column and a rear guide column (23-3); the two clamping arms (23-2) are arranged symmetrically left and right; each clamping arm (23-2) comprises a flat plate and a vertical plate vertically connected to the outer edge of the flat plate; the flat plate is respectively provided with a front guide groove, a rear guide groove, a left guide groove and a right guide groove, and the guide grooves are matched with the guide columns (23-3).
5. The portable infrared meter reading system for auditing the field of electricity stealing of claim 4, further comprising: the shell (23-1) also comprises a mounting plate (23-5) placed on the guide post (23-3) and a screw (23-4) penetrating through the mounting plate (23-5) and connected with a threaded hole at the top of the guide post (23-3).
6. The portable infrared meter reading system for auditing the field of electricity stealing of claim 5, further comprising: the mounting plate (23-5) in the first back clip (2) is made of insulating materials, and the infrared transceiving circuit (5) is mounted on the mounting plate (23-5).
7. The portable infrared meter reading system for auditing the field of electricity stealing of claim 4, further comprising: the inner side wall of the vertical plate of the clamping arm (23-2) is provided with a groove, and the groove gradually inclines towards the shell (23-1) from the root part to the outer end of the vertical plate.
8. The portable infrared meter reading system for auditing the field of electricity stealing of claim 4, further comprising: the housing (23-1) further comprises an upper cover (23-1-1) mounted on the bottom plate (23-1-2).
9. The portable infrared meter reading system for checking the field stealing of electricity according to any one of claims 1 to 8, wherein: external threads are arranged at two ends of the supporting rod (7), connecting seats (23-8) are arranged on the first back clamp (2) and the second back clamp (3), and threaded holes matched with the external threads are formed in the connecting seats (23-8); and nuts (6) are respectively arranged at the external threads.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202121925516.9U CN215768733U (en) | 2021-08-17 | 2021-08-17 | Portable infrared meter reading system for checking field electricity stealing |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202121925516.9U CN215768733U (en) | 2021-08-17 | 2021-08-17 | Portable infrared meter reading system for checking field electricity stealing |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN215768733U true CN215768733U (en) | 2022-02-08 |
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202121925516.9U Active CN215768733U (en) | 2021-08-17 | 2021-08-17 | Portable infrared meter reading system for checking field electricity stealing |
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|---|---|
| CN (1) | CN215768733U (en) |
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2021
- 2021-08-17 CN CN202121925516.9U patent/CN215768733U/en active Active
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