CN211510367U - Static grid bird repeller and static grid bird repelling system - Google Patents
Static grid bird repeller and static grid bird repelling system Download PDFInfo
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- CN211510367U CN211510367U CN201921982220.3U CN201921982220U CN211510367U CN 211510367 U CN211510367 U CN 211510367U CN 201921982220 U CN201921982220 U CN 201921982220U CN 211510367 U CN211510367 U CN 211510367U
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Abstract
The utility model relates to a bird ware is driven to static net and bird system is driven to static net, static net drive bird ware include: the device comprises a battery, a processing module and a sampling circuit; the processing module comprises a processor and a pulse control circuit, the output end of the sampling circuit is connected with the electrostatic sampling end of the processor, the output end of the processor is connected with the input end of the pulse control circuit, the output end of the pulse control circuit is connected with the electrostatic network, and the pulse control circuit is used for outputting intermittent timing pulse signals. The sampling circuit is connected with the electrostatic sampling end of the processor, the running state of the electrostatic network is adopted, the processor controls the on-off of the pulse control circuit and the electrostatic network, the pulse control circuit sends pulse signals with preset time intervals to the electrostatic network in the normal running state of the electrostatic network, the output state of the electrostatic network is an intermittent output state, the output power consumption of the bird repeller of the electrostatic network is reduced, and the cruising ability of the battery is improved.
Description
Technical Field
The utility model relates to a power transmission and transformation circuit protection technical field especially relates to a bird ware is driven to static net and bird system is driven to static net.
Background
Along with the promotion of distribution network technical level, overhead transmission and transformation circuit becomes main high voltage transmission line mode of erectting, and the high voltage transmission line of overhead state, open-air flying object falls on it easily, for example, birds perch on high voltage transmission line, cause high voltage transmission line's damage, traditional mode is to set up the static electric wire netting on high voltage transmission line's outermost insulating layer, the static electric wire netting of erectting is connected through the electric field that produces the little current of high pressure, when birds foot, can receive the stimulation of high-voltage static and reach the effect of forcing to drive.
However, the conventional electrostatic bird repelling device continuously provides high-voltage micro-current, so that the power consumption of the conventional electrostatic bird repelling device is high, the battery power supply time of the conventional electrostatic bird repelling device is short, the cruising ability of the conventional electrostatic bird repelling device is poor, and the requirement of long-term power supply of high-voltage micro-current cannot be met.
SUMMERY OF THE UTILITY MODEL
Accordingly, there is a need for an electrostatic net bird repeller and an electrostatic net bird repelling system with improved cruising ability.
An electrostatic net bird repeller comprising: the output end of the battery is connected with the power supply end of the processing module, the input end of the sampling circuit is connected with the output end of the processing module, the output end of the sampling circuit is connected with the detection end of the processing module, and the output end of the processing module is connected with the electrostatic network; the processing module comprises a processor and a pulse control circuit, wherein the output end of the sampling circuit is connected with the electrostatic sampling end of the processor, the output end of the processor is connected with the input end of the pulse control circuit, the output end of the pulse control circuit is connected with an electrostatic net, and the pulse control circuit is used for outputting intermittent timing pulse signals.
In one embodiment, the processing module further comprises a high voltage generating circuit, an output end of the pulse control circuit is connected with an input end of the high voltage generating circuit, and an output end of the high voltage generating circuit is used for being connected with the electrostatic net.
In one embodiment, the high voltage generation circuit comprises a high voltage generator and a discharge switch, wherein the discharge switch is connected with a discharge end of the high voltage generator and used for releasing residual electricity of a static grid.
In one embodiment, the electrostatic net bird repeller further comprises a sensor, an output end of the sensor is connected with a detection end of the processor, and the sensor is used for acquiring environmental parameters.
In one embodiment, the sensor comprises a first sensor, an output end of the first sensor is connected with a first detection end of the processor, and the first sensor is used for monitoring the ambient humidity.
In one embodiment, the sensor comprises a second sensor, an output end of the second sensor is connected with a second detection end of the processor, and the second sensor is used for monitoring the ambient light intensity.
In one embodiment, the electrostatic net bird repeller further comprises a charging circuit, and the second sensor is connected with the input end of the battery through the charging circuit.
In one embodiment, the second sensor comprises a photovoltaic panel.
In one embodiment, the processing module further comprises a sensing control circuit, the sensor is connected with the detection end of the processor through the sensing control circuit, and the sensing control circuit is used for controlling enabling or disabling of the pulse control circuit and a static grid.
An electrostatic net bird repelling system comprises an electrostatic net and the electrostatic net bird repelling device in any embodiment, wherein the output end of the processing module is connected with the input end of the sampling circuit and the electrostatic net respectively.
In the static grid bird repeller and the static grid bird repelling system, the sampling circuit is connected with the static sampling end of the processor, the running state of the static grid is adopted, the processor controls the on-off of the pulse control circuit and the static grid, so that the pulse control circuit sends pulse signals with preset time intervals to the static grid under the normal running state of the static grid, the output state on the static grid is an intermittent output state, the output power consumption of the static grid bird repeller is reduced, and the cruising ability of the battery is improved.
Drawings
Fig. 1 is a schematic structural view of an electrostatic net bird repeller according to an embodiment.
Detailed Description
In order to facilitate understanding of the present invention, the present invention will be described more fully hereinafter with reference to the accompanying drawings. The preferred embodiments of the present invention are shown in the drawings. The invention may, however, be embodied in many different forms and should not be construed as limited to the embodiments set forth herein. Rather, these embodiments are provided so that this disclosure will be thorough and complete.
It will be understood that when an element is referred to as being "disposed on" another element, it can be directly on the other element or intervening elements may also be present. When an element is referred to as being "connected" to another element, it can be directly connected to the other element or intervening elements may also be present. The terms "vertical," "horizontal," "left," "right," and the like as used herein are for illustrative purposes only and do not represent the only embodiments.
Unless defined otherwise, all technical and scientific terms used herein have the same meaning as commonly understood by one of ordinary skill in the art to which this invention belongs. The terminology used in the description of the invention herein is for the purpose of describing particular embodiments only and is not intended to be limiting of the invention. As used herein, the term "and/or" includes any and all combinations of one or more of the associated listed items.
In one embodiment, an electrostatic mesh bird repeller includes: the output end of the battery is connected with the power supply end of the processing module, the input end of the sampling circuit is connected with the output end of the processing module, the output end of the sampling circuit is connected with the detection end of the processing module, and the output end of the processing module is connected with the electrostatic network; the processing module comprises a processor and a pulse control circuit, wherein the output end of the sampling circuit is connected with the electrostatic sampling end of the processor, the output end of the processor is connected with the input end of the pulse control circuit, the output end of the pulse control circuit is connected with an electrostatic net, and the pulse control circuit is used for outputting intermittent timing pulse signals. In the bird repeller for the static grid, the sampling circuit is connected with the static sampling end of the processor, the running state of the static grid is adopted, and the processor controls the on-off of the pulse control circuit and the static grid, so that the pulse control circuit sends pulse signals with preset time intervals to the static grid in the normal running state of the static grid, the output state on the static grid is in an intermittent output state, the output power consumption of the bird repeller for the static grid is reduced, and the cruising ability of the battery is improved.
Referring to fig. 1, an electrostatic net bird repeller 10 according to an embodiment includes: the system comprises a battery 100, a processing module 200 and a sampling circuit 300, wherein the output end of the battery 100 is connected with the power supply end of the processing module 200, the input end of the sampling circuit 300 is connected with the output end of the processing module 200, the output end of the sampling circuit 300 is connected with the detection end of the processing module 200, and the output end of the processing module 200 is used for being connected with an electrostatic network; the processing module 200 comprises a processor 210 and a pulse control circuit 220, wherein the output end of the sampling circuit 300 is connected with the electrostatic sampling end of the processor 210, the output end of the processor 210 is connected with the input end of the pulse control circuit 220, the output end of the pulse control circuit 220 is connected with an electrostatic network, and the pulse control circuit 220 is used for outputting intermittent timing pulse signals.
In the bird repeller for the static grid, the sampling circuit 300 acquires the running state parameters of the static grid, the processor 210 determines the current running condition of the static grid according to the running state parameters of the static grid, and the processor 210 sends pulse signals with preset time intervals to the static grid through the pulse control circuit 220 under the condition that the running state parameters are matched with the preset running state parameters, so that the output state on the static grid is an intermittent output state, the output power consumption of the bird repeller for the static grid is reduced, and the cruising ability of the battery 100 is improved.
In one embodiment, referring to fig. 1, the processing module 200 further includes a high voltage generating circuit 230, an output terminal of the pulse control circuit 220 is connected to an input terminal of the high voltage generating circuit 230, and an output terminal of the high voltage generating circuit 230 is used for being connected to an electrostatic net. In this embodiment, the pulse control circuit 220 outputs an intermittent timing pulse signal, the current output by the pulse signal is a constant current, and the high voltage generating circuit 230 amplifies the voltage of the pulse signal, that is, the high voltage generating circuit 230 increases the voltage amplitude of the pulse signal, that is, the high voltage generating circuit 230 increases the average voltage of the pulse signal, so that the pulse signal is a high voltage current signal, and thus the electric signal flowing through the electrostatic network is a high voltage current signal, which is convenient for repelling birds perching on the electrostatic network. Therefore, the pulse signal generates high-voltage stimulation to birds inhabiting the electrostatic net through the characteristic of high voltage, and meanwhile, the current in the pulse signal keeps a lower level, namely the voltage of the pulse signal is high voltage, and the current is micro-current, so that the power output to the electrostatic net by the battery 100 is reduced, the power consumption of the bird repeller of the electrostatic net is reduced, and the cruising ability of the battery 100 is improved.
In one embodiment, referring to fig. 1, the high voltage generating circuit 230 includes a high voltage generator 232 and a discharging switch 234, and the discharging switch 234 is connected to a discharging end of the high voltage generator 232 for discharging the remaining power of the electrostatic network. In this embodiment, the pulse control circuit 220 controls the frequency of the pulse signal output by the high voltage generator 232, and the pulse control circuit 220 also controls the operation state of the discharge switch 234. The high voltage generator 232 is provided with a high voltage capacitor for generating a high voltage electric field, and the pulse signal needs to charge the high voltage capacitor in one period, so that the high voltage generator 232 generates the high voltage electric field on the electrostatic network. During the charging process of the high-voltage capacitor, the pulse control circuit 220 controls the discharge switch 234, so that the discharge switch 234 is in an off state, and the high-voltage capacitor is continuously charged; in other times of the pulse signal, the pulse control circuit 220 controls the on-off state of the discharge switch 234, so that the output mode of the pulse signal is an intermittent output mode, and residual electricity on the electrostatic network is released when the discharge switch 234 is turned on, thereby reducing the misjudgment probability of the residual electricity on the electrostatic network on the abnormal operation state of the electrostatic network.
In one embodiment, the electrostatic net bird repeller further comprises a sensor, an output end of the sensor is connected with a detection end of the processor, and the sensor is used for acquiring environmental parameters. In this embodiment, the sensor is configured to acquire various environmental parameters of an environment in which the static grid is located, the sensor transmits the acquired environmental parameters to the processor, the processor determines a current environment in which the static grid is located according to the environmental parameters, the processor compares the environmental parameters acquired by the sensor with the environmental parameters of the static grid in a normal operation state, and determines whether the static grid is in the environment in the normal operation state according to a comparison result of the environmental parameters and the environmental parameters of the static grid in the normal operation state, that is, determines whether the static grid is in an extremely severe environment according to a comparison result of the environmental parameters and the environmental parameters.
In one embodiment, referring to fig. 1, the sensor includes a first sensor 400, an output end of the first sensor 400 is connected to a first detection end of the processor 210, and the first sensor 400 is used for monitoring the ambient humidity. In this embodiment, the first sensor 400 is a rain and dew sensor, the first sensor 400 obtains an ambient humidity, the processor 210 detects whether the ambient humidity is matched with a preset humidity, the preset humidity is an ambient humidity corresponding to a static grid in a normal operation state, and then the processor 210 performs a corresponding operation according to a matching condition of the sensed ambient humidity and the preset humidity, for example, when the sensed ambient humidity is greater than the preset humidity, it indicates that an environment where the static grid is located is an extremely severe environment with an excessively high ambient humidity, that is, the environment where the static grid is located is an environment in rainy weather, at this time, the processor 210 stops sending the pulse signal to the static grid through the pulse control circuit 220, that is, the processor 210 sends a prohibition signal to the pulse control circuit 220, so that the pulse control circuit 220 is disconnected from the static grid, so that no current flows through the electrostatic net anymore. Therefore, according to the humidity value of the environment where the electrostatic net is located and through comparison with the humidity of the electrostatic net in the normal operation state, the electrostatic net bird repeller does not send the pulse signal in the rainy environment, namely, the battery 100 does not provide ground electric energy to the electrostatic net any more, so that the power consumption of the electrostatic net bird repeller to the electrostatic net in the rainy environment is reduced to zero, and the electrostatic net bird repeller outputs the pulse signal to the electrostatic net only in a fine day, and the effect of improving the cruising ability of the battery 100 is achieved.
In one embodiment, referring to fig. 1, the sensor includes a second sensor 500, an output terminal of the second sensor 500 is connected to a second detection terminal of the processor 210, and the second sensor 500 is used for monitoring the ambient light intensity. In this embodiment, the second sensor 500 is a photosensitive sensor, the second sensor 500 acquires an ambient light intensity, the processor 210 detects whether the ambient light intensity is matched with a preset light intensity, the preset light intensity is an ambient light intensity corresponding to the static grid in a normal operation state, then the processor 210 performs a corresponding operation according to a matching condition of the transmitted ambient light intensity and the preset light intensity, for example, when the transmitted ambient light intensity is smaller than the preset light intensity, it indicates that the static grid is in an extreme severe environment with too small ambient light intensity, that is, the static grid is in an environment with no light at night, at this time, the processor 210 stops sending the pulse signal to the static grid through the pulse control circuit 220, that is, the processor 210 sends a prohibition signal to the pulse control circuit 220, the pulse control circuit 220 is disconnected from the electrostatic net so that no current flows through the electrostatic net. Therefore, according to the illumination intensity of the environment where the electrostatic net is located and through comparison with the illumination intensity of the electrostatic net in the normal operation state, the electrostatic net bird repeller does not send the pulse signal in the night environment, namely, the battery 100 does not provide ground electric energy for the electrostatic net at night, so that the power consumption of the electrostatic net bird repeller to the electrostatic net at night is reduced to zero, and the electrostatic net bird repeller outputs the pulse signal to the electrostatic net only in the day, and the effect of improving the cruising ability of the battery 100 is achieved. In other embodiments, the second sensor 500 comprises a photovoltaic panel that combines the functions of acquiring ambient light intensity and providing a charge to the battery 100.
In one embodiment, referring to fig. 1, the electrostatic net bird repeller further includes a charging circuit 600, and the second sensor 500 is connected to the input terminal of the battery 100 through the charging circuit 600. In this embodiment, the second sensor 500 is a solar panel, the solar panel obtains the illumination intensity of the environment where the electrostatic network is located, and the solar panel converts the obtained light energy into electric energy to be transmitted to the battery 100, so as to charge the battery 100. The charging circuit 600 performs voltage reduction and constant current processing on the electric energy transmitted by the solar panel, so that the current transmitted to the battery 100 is direct current with specified voltage, thereby facilitating charging of the battery 100 and improving the cruising ability of the battery 100. In one embodiment, the charging circuit 600 includes a voltage reduction circuit and a constant current source circuit, the voltage reduction circuit reduces the voltage amplitude of the electrical signal transmitted by the solar panel to a specified value, and the constant current source circuit converts the electrical signal transmitted by the solar panel into a stable dc signal, so that the charging voltage transmitted to the two ends of the battery 100 is a low-voltage dc signal, which is convenient for charging the battery 100. In one embodiment, a diode is connected to the input terminal of the charging circuit 600, so that the voltage supplied to the charging circuit 600 is single-phase, which facilitates the processing of voltage reduction and constant current supply to the charging circuit 600. In one embodiment, the charging circuit 600 has an external charging interface for directly connecting with an external power supply, so as to facilitate rapid charging of the battery 100.
In one embodiment, the processing module further comprises a sensing control circuit, the sensor is connected with the detection end of the processor through the sensing control circuit, and the sensing control circuit is used for controlling enabling or disabling of the pulse control circuit and a static grid.
In one embodiment, referring to fig. 1, the sensor includes a first sensor 400, an output of the first sensor 400 is connected to a first detection terminal of the processor 210, the first sensor 400 is used for detecting ambient humidity, the sensing control circuit includes a humidity signal control circuit 240, the first sensor 400 is connected to the first detection terminal of the processor 210 through the humidity signal control circuit 240, and the humidity signal control circuit 240 is used for controlling enabling or disabling of the pulse control circuit 220 and the static grid. The humidity signal control circuit 240 converts the ambient humidity acquired by the first sensor 400 into a corresponding electrical signal, for example, when there is rain or dew in the environment, the ambient humidity is greater than the preset ambient humidity, the first sensor 400 transmits the ambient humidity to the humidity signal control circuit 240, that is, the first sensor 400 converts the physical signal of humidity into the electrical signal, the humidity signal control circuit 240 determines the current environment of the electrostatic net in rainy days according to the voltage level of the electrical signal transmitted by the first sensor 400, the humidity signal control circuit 240 outputs a high level signal to the processor 210, and the processor 210 stops transmitting the pulse signal to the electrostatic net through the pulse control circuit 220 according to the acquired high level signal. Therefore, according to the humidity value of the environment where the electrostatic net is located and through comparison with the humidity of the electrostatic net in the normal operation state, the electrostatic net bird repeller does not send the pulse signal in the rainy environment, namely, the battery 100 does not provide ground electric energy to the electrostatic net any more, so that the power consumption of the electrostatic net bird repeller to the electrostatic net in the rainy environment is reduced to zero, and the electrostatic net bird repeller outputs the pulse signal to the electrostatic net only in a fine day, and the effect of improving the cruising ability of the battery 100 is achieved.
In one embodiment, referring to fig. 1, the sensor includes a second sensor 500, an output terminal of the second sensor 500 is connected to a second detection terminal of the processor 210, the second sensor 500 is used for detecting the intensity of ambient light, the sensing control circuit includes a light sensing control circuit 250, the second sensor 500 is connected to the second detection terminal of the processor 210 through the light sensing control circuit 250, and the light sensing control circuit 250 is used for controlling the enabling or disabling of the pulse control circuit 220 and the static grid. The light sensation control circuit 250 converts the ambient light intensity obtained by the second sensor 500 into a corresponding electrical signal, for example, when the electrostatic network is in a night environment, the ambient light intensity is greater than the preset ambient light intensity, the second sensor 500 transmits the ambient light intensity to the light sensation control circuit 250, that is, the second sensor 500 converts a physical signal of the light intensity into the electrical signal, the light sensation control circuit 250 determines the current environment of the electrostatic network in rainy days according to the voltage level of the electrical signal transmitted by the second sensor 500, the light sensation control circuit 250 outputs a high level signal to the processor 210, and the processor 210 stops transmitting a pulse signal to the electrostatic network through the pulse control circuit 220 according to the obtained high level signal. Therefore, according to the illumination intensity of the environment where the electrostatic net is located and through comparison with the illumination intensity of the electrostatic net in a normal operation state, the electrostatic net bird repeller does not send the pulse signal in a night environment, namely, the battery 100 does not provide ground electric energy for the electrostatic net any more, so that the power consumption of the electrostatic net bird repeller to the electrostatic net in the night environment is reduced to zero, and the electrostatic net bird repeller outputs the pulse signal to the electrostatic net only in the day, and the effect of improving the cruising ability of the battery 100 is achieved.
In the above embodiments, the processor controls the operation state of the pulse control circuit by sending a control instruction, so as to control the output end of the pulse control circuit to switch between a state of allowing output and a state of stopping output of the pulse signal, wherein the pulse control circuit is used for generating the dc pulse signal which is output intermittently and periodically and has a small current.
In one embodiment, an electrostatic net bird repelling system is provided, which includes an electrostatic net and the electrostatic net bird repelling device in any one of the above embodiments, and an output end of the processing module is connected to an input end of the sampling circuit and the electrostatic net, respectively.
According to the bird repeller for the electrostatic network and the bird repelling system for the electrostatic network, the sampling circuit is connected with the electrostatic sampling end of the processor, the running state of the electrostatic network is adopted, the processor controls the on-off of the pulse control circuit and the electrostatic network, so that the pulse control circuit sends pulse signals with preset time intervals to the electrostatic network under the normal running state of the electrostatic network, the output state on the electrostatic network is an intermittent output state, the output power consumption of the bird repeller for the electrostatic network is reduced, and the cruising ability of the battery is improved.
The technical features of the embodiments described above may be arbitrarily combined, and for the sake of brevity, all possible combinations of the technical features in the embodiments described above are not described, but should be considered as being within the scope of the present specification as long as there is no contradiction between the combinations of the technical features.
The above-mentioned embodiments only represent some embodiments of the present invention, and the description thereof is specific and detailed, but not to be construed as limiting the scope of the present invention. It should be noted that, for those skilled in the art, without departing from the spirit of the present invention, several variations and modifications can be made, which are within the scope of the present invention. Therefore, the protection scope of the present invention should be subject to the appended claims.
Claims (10)
1. The utility model provides an electrostatic net drives bird ware which characterized in that includes: the output end of the battery is connected with the power supply end of the processing module, the input end of the sampling circuit is connected with the output end of the processing module, the output end of the sampling circuit is connected with the detection end of the processing module, and the output end of the processing module is connected with the electrostatic network;
the processing module comprises a processor and a pulse control circuit, wherein the output end of the sampling circuit is connected with the electrostatic sampling end of the processor, the output end of the processor is connected with the input end of the pulse control circuit, the output end of the pulse control circuit is connected with an electrostatic net, and the pulse control circuit is used for outputting intermittent timing pulse signals.
2. The electrostatic net bird repeller of claim 1, wherein the processing module further comprises a high voltage generating circuit, an output terminal of the pulse control circuit is connected with an input terminal of the high voltage generating circuit, and an output terminal of the high voltage generating circuit is used for being connected with the electrostatic net.
3. The electrostatic net bird repeller of claim 2, wherein the high voltage generating circuit comprises a high voltage generator and a discharge switch, and the discharge switch is connected with a discharge end of the high voltage generator for discharging residual electricity of the electrostatic net.
4. The electrostatic net bird repeller of claim 1, further comprising a sensor, wherein an output end of the sensor is connected with a detection end of the processor, and the sensor is used for acquiring environmental parameters.
5. The electrostatic net bird repeller of claim 4, wherein the sensor includes a first sensor, an output of the first sensor is connected to a first detection end of the processor, and the first sensor is used to monitor ambient humidity.
6. The electrostatic net bird repeller of claim 4, wherein the sensor includes a second sensor, an output of the second sensor is connected to a second detection terminal of the processor, and the second sensor is used for monitoring the ambient light intensity.
7. The electrostatic net bird repeller of claim 6 further comprising a charging circuit through which the second sensor is connected to an input of the battery.
8. The electrostatic mesh bird repeller of claim 6 wherein the second sensor includes a photovoltaic panel.
9. The electrostatic net bird repeller of claim 4, wherein the processing module further comprises a sensing control circuit, the sensor is connected with the detection end of the processor through the sensing control circuit, and the sensing control circuit is used for controlling enabling or disabling of the pulse control circuit and the electrostatic net.
10. An electrostatic net bird repelling system, which is characterized by comprising an electrostatic net and the electrostatic net bird repelling device as claimed in any one of claims 1 to 9, wherein the output end of the processing module is respectively connected with the input end of the sampling circuit and the electrostatic net.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201921982220.3U CN211510367U (en) | 2019-11-15 | 2019-11-15 | Static grid bird repeller and static grid bird repelling system |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201921982220.3U CN211510367U (en) | 2019-11-15 | 2019-11-15 | Static grid bird repeller and static grid bird repelling system |
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| Publication Number | Publication Date |
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| CN211510367U true CN211510367U (en) | 2020-09-18 |
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| CN201921982220.3U Active CN211510367U (en) | 2019-11-15 | 2019-11-15 | Static grid bird repeller and static grid bird repelling system |
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| CN (1) | CN211510367U (en) |
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Effective date of registration: 20210224 Address after: 510620, No. two, No. 2, Tianhe South Road, Guangzhou, Guangdong, Tianhe District Patentee after: Guangzhou Power Supply Bureau of Guangdong Power Grid Co.,Ltd. Address before: 510620, No. two, No. 2, Tianhe South Road, Guangzhou, Guangdong, Tianhe District Patentee before: GUANGZHOU POWER SUPPLY Co.,Ltd. |
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