TWI574011B - Three - dimensional sensing device - Google Patents

Description

Three-dimensional sensing device

The invention relates to a breeze sensing device, in particular to a sensing device for measuring the wind direction, wind speed and air volume of a breeze by a three-dimensional electric field.

Nowadays, the anemometer on the market can only measure the wind speed, and the wind direction and the air volume cannot be measured. Moreover, the general anemometer is not easy to measure for very small air volumes.

Generally, the anemometer is mostly a one-dimensional structure. Therefore, when measuring the wind speed, the direction of the wind must be known first, so the measurement is not very convenient, and for the precise measurement that must measure the small amount of wind speed, the general anemometer cannot action.

In the case of a higher-order two-dimensional anemometer structure, in addition to the energy measurement of the wind speed, the wind direction can be known without the need to go to a one-dimensional anemometer, and the direction of the wind must be known first.

Due to industrial needs, especially in precision industrial, biochemical laboratories, hospital operating rooms, etc., where high precision and high accuracy are required, such as microsurgery measurement, it is necessary to clearly know the flow of organs in the body. Knowing the wind speed and direction is not enough. You must also understand the air volume to ensure the correctness of the microsurgery.

In view of this, how to provide a three-dimensional sensing device that can be applied to the sensing of the wind direction, wind speed and air volume of the breeze is desired by those skilled in the art.

It is an object of the present invention to provide a three-dimensional sensing device.

In order to achieve the above object, the present invention provides a three-dimensional sensing device, which is applied to a wind direction, a wind speed, and an air volume sensing environment of a breeze. The three-dimensional sensing device includes: a high voltage generating module including a high voltage generating circuit and the first An electric field plate, a high voltage generating circuit for generating a DC negative high voltage, thereby ionizing the gas to form a charged ion cloud; and a sensing receiving module, the sensing receiving module comprising a second electric field plate, three sets of detecting pins and The sensing circuit, the three sets of detecting pins are vertically disposed on the second electric field plate, and thereby enclose the sensing area, and the center of the sensing area is set as the input point of the DC negative high voltage generated by the high voltage generating module. When the wind blows in, the distribution of the charged ion cloud in the sensing area will change, so that the amount of charge sensed by the three sets of probes is not equal, and the sensing circuit receives and senses the output due to the unequal charge amount. The test signal is sent to the computer, and the computer receives and processes the sensing signal to calculate the wind direction, wind speed and air volume of the breeze.

1‧‧‧3D sensing device

10‧‧‧High voltage generating module

12‧‧‧Sensing Receiver Module

102‧‧‧High voltage generating circuit

104‧‧‧First electric field plate

122‧‧‧Second electric field plate

200‧‧‧ probe needle

300‧‧‧ probe needle

400‧‧‧Needle

140‧‧‧Center of the sensing area

120‧‧‧Sensor circuit

151‧‧‧Sense signal

60‧‧‧ computer

1020‧‧‧Oscillation circuit

1022‧‧‧ drive circuit

1024‧‧‧ boost circuit

1026‧‧‧ double voltage circuit

1201, 1202‧‧‧ snubber circuit

1203‧‧‧Subtractor circuit

1204‧‧‧Amplifier Circuit

1205‧‧‧High-pass filter circuit

1206‧‧‧Low-pass filter circuit

1211, 1212‧‧‧ snubber circuit

1213‧‧‧Subtractor circuit

1214‧‧‧Amplifier circuit

1215‧‧‧High-pass filter circuit

1216‧‧‧Low-pass filter circuit

1221, 1222‧‧‧ snubber circuit

1223‧‧‧Subtractor circuit

1224‧‧‧Amplifier circuit

1225‧‧‧High-pass filter circuit

1226‧‧‧Low-pass filter circuit

151, 152, 153‧‧‧ sensing signals

The first figure is a schematic diagram of the structure of the three-dimensional sensing device; the second figure is an enlarged schematic view of three sets of detecting pins vertically disposed on the second electric field plate; and the third figure is an embodiment of the present invention.

The present invention will be explained below by way of embodiments relating to a three-dimensional sensing device. The three-dimensional sensing device of the invention is applied to the wind direction, wind speed and air volume sensing environment of the breeze, and the wind direction, the wind speed and the air volume can be accurately measured even in the case of a small breeze through the device of the invention. However, the embodiments of the present invention are not intended to limit any particular environment, application, or particular mode of carrying out the invention. Therefore, the description of the embodiments is merely illustrative of the purpose of the invention, rather than To limit the invention. It is to be noted that in the following embodiments and drawings, elements that are not directly related to the present invention have been omitted and are not shown; and for the sake of simplicity, the dimensional relationships between the elements are not drawn to scale.

As shown in the first figure, it is a schematic diagram of the architecture of the three-dimensional sensing device 1. The three-dimensional sensing device 1 is applied to the wind direction, wind speed, and wind volume sensing environment of the breeze.

The three-dimensional sensing device 1 includes a high voltage generating module 10 and a sensing receiving module 12 .

The high voltage generating module 10 includes a high voltage generating circuit 102 and a first electric field plate 104.

The sensing receiving module 12 includes a second electric field plate 122, three sets of detecting pins 200, 300, 400 and a sensing circuit 120. The three sets of detecting pins 200, 300, and 400 are vertically disposed on the second electric field plate 122. And enclosing the sensing area, and the center 140 of the sensing area is set as the input point of the DC negative high voltage generated by the high voltage generating module 10.

The principle of measurement is that when the wind blows in, the distribution of the charged ion cloud in the sensing area will change. At this time, the amount of charge sensed by the three sets of probes 200, 300, and 400 will be unequal. The measuring circuit 120 receives and outputs the sensing signal 151 to the computer 60 according to the unequal charge amount, and the computer 60 receives and processes the sensing signal 151 to calculate the wind direction, wind speed and air volume of the breeze.

As shown in the second figure, the three sets of probe pins 200, 300, and 400 are vertically disposed on the second electric field plate 122 in the first figure.

The DC negative high voltage system is generated through the high voltage generating circuit 102, and the high voltage generating circuit 102 includes an oscillating circuit, a driving circuit, a boosting circuit and a voltage doubling circuit. The oscillating circuit is configured to generate a square wave signal and pass the driving circuit. The square wave signal is output to the boosting circuit, boosted by the boosting circuit, and then doubled and rectified by the voltage doubler circuit to generate a DC negative high voltage. The action of DC negative high voltage is used to ionize the gas to form a charged ion cloud.

In addition, the boosting circuit can be a piezoelectric transformer; the filtering circuit is composed of a high-pass filter and a low-pass filter, and the high-pass filter filters out the high-frequency signal generated by the piezoelectric transformer, and the low-pass filter is Filter out electrical noise from outside interference.

As seen in the sensing circuit 120, in more detail, the sensing circuit 120 includes a buffer circuit, a subtractor circuit, an amplifier circuit, and a filter circuit. The current is formed by ionizing the gas due to the action of the DC negative high voltage. The buffer circuit is converted into a voltage value output, the difference is calculated by the subtractor circuit, the signal is amplified by the amplifier circuit, and finally transmitted through the filter circuit to output the sensing signal 151.

In order to increase the transmission of static electricity, fiber fluff may be disposed between the first electrode plate 104 and the second electrode plate 122, thereby increasing electrostatic conduction and improving sensing sensitivity.

In addition, since a high voltage is generated, a spacer may be provided on the periphery of the first electrode plate 104 and the second electrode plate 122 in consideration of safety, in order to avoid danger.

As shown in the third figure, it is an embodiment of the three-dimensional sensing device 1 of the present invention, which is applied to the wind direction, wind speed, and air volume sensing environment of the breeze.

In the embodiment, the three-dimensional sensing device 1 includes a high voltage generating module 10 and a sensing receiving module 12 .

The high voltage generating module 10 includes a high voltage generating circuit 102 and a first electric field plate 104. The high voltage generating circuit 102 is composed of an oscillating circuit 1020, a driving circuit 1022, a boosting circuit 1024, and a voltage doubling circuit 1026. The oscillating circuit 1020 is configured to generate a square wave signal, and output the square wave signal to the driving circuit 1022. The booster circuit 1024 is boosted by the booster circuit 1024, and then double-pressed and rectified by the voltage multiplying circuit 1026 to generate a DC negative high voltage. The action of DC negative high voltage ionizes the gas to form a charged ion cloud.

The sensing receiving module 12 includes a second electric field plate 122, three sets of detecting pins 200, 300, 400 and a sensing circuit 120, wherein the three sets of detecting pins 200, 300, The 400 is disposed vertically on the second electric field plate 122 to define a sensing area, and the center 140 of the sensing area is set as an input point of the DC negative high voltage generated by the high voltage generating module 10.

In order to correspond to the three sets of probes 200, 300, 400, the sensing circuit 120 will also correspond to the three sets of circuits. The first group of circuits is composed of buffer circuits 1201 and 1202, a subtractor circuit 1203, an amplifier circuit 1204, a high-pass filter circuit 1205, and a low-pass filter circuit 1206.

The second set of circuits is composed of buffer circuits 1211 and 1212, a subtractor circuit 1213, an amplifier circuit 1214, a high pass filter circuit 1215, and a low pass filter circuit 1216.

The third group of circuits is composed of buffer circuits 1221 and 1222, a subtractor circuit 1223, an amplifier circuit 1224, a high pass filter circuit 1225, and a low pass filter circuit 1226.

Due to the DC negative high voltage of the high voltage generating module 10, the gas is ionized, and the generated current is converted into a voltage value output in the buffer circuits 1201, 1202, 1211, 1212, 1221, 1222 via the subtractors 1203, 1213. The 1223 circuit calculates the difference, and then amplifies the signal through the amplifier circuits 1204, 1214, and 1224, and finally passes through the high-pass filter circuits 1205, 1215, and 1225 and the low-pass filter circuits 1206, 1216, and 1226 to respectively output the sensing signals 151, 152, 153 to the computer 60.

In addition, the booster circuit 1024 can be a piezoelectric transformer; the filter circuit can be composed of high-pass filter circuits 1205, 1215, 1225 and low-pass filter circuits 1206, 1216, 1226, and the high-pass filter circuits 1205, 1215, 1225 are filtered out. The high-frequency signals generated by the piezoelectric transformer, the low-pass filter circuits 1206, 1216, and 1226 are electrical noises that filter out external interference.

The principle of measurement is that when the wind blows in, the distribution of the charged ion cloud in the sensing area will change. At this time, the amount of charge sensed by the three sets of probes 200, 300, and 400 will be unequal. Three sets of electricity in circuit 120 The roads will receive and output the sensing signals 151, 152, and 153 to the computer 60 in response to the unequal charge amounts, and the computer 60 receives and processes the sensing signals 151, 152, and 153 to calculate the wind direction, wind speed, and air volume of the breeze. .

In more detail, the computer 60 can display the received sensing signals 151, 152, and 153 as X-axis, Y-axis, and Z-axis coordinate curves, so that the user can directly transmit the distribution of the graphics displayed by the computer 60. To understand the wind direction, wind speed and air volume of the measured breeze.

The above embodiments are merely examples of some embodiments of the present invention, and are not intended to limit the scope of the present invention. The present invention is intended to more clearly describe the features and spirit of the present invention. The scope of the invention is not limited by the specific embodiments disclosed herein. On the contrary, the intention is to cover various modifications and equivalents within the scope of the invention as claimed.

1‧‧‧3D sensing device

10‧‧‧High voltage generating module

12‧‧‧Sensing Receiver Module

102‧‧‧High voltage generating circuit

104‧‧‧First electric field plate

122‧‧‧Second electric field plate

200‧‧‧ probe needle

300‧‧‧ probe needle

400‧‧‧Needle

140‧‧‧Center of the sensing area

120‧‧‧Sensor circuit

151‧‧‧Sense signal

60‧‧‧ computer

1020‧‧‧Oscillation circuit

1022‧‧‧ drive circuit

1024‧‧‧ boost circuit

1026‧‧‧ double voltage circuit

1201, 1202‧‧‧ snubber circuit

1203‧‧‧Subtractor circuit

1204‧‧‧Amplifier Circuit

1205‧‧‧High-pass filter circuit

1206‧‧‧Low-pass filter circuit

1211, 1212‧‧‧ snubber circuit

1213‧‧‧Subtractor circuit

1214‧‧‧Amplifier circuit

1215‧‧‧High-pass filter circuit

1216‧‧‧Low-pass filter circuit

1221, 1222‧‧‧ snubber circuit

1223‧‧‧Subtractor circuit

1224‧‧‧Amplifier circuit

1225‧‧‧High-pass filter circuit

1226‧‧‧Low-pass filter circuit

151, 152, 153‧‧‧ sensing signals

Claims (7)

A three-dimensional sensing device is applied to a wind direction, a wind speed, and an air volume sensing environment of a breeze. The three-dimensional sensing device includes: a high voltage generating module including a high voltage generating circuit and a first electric field plate, The high voltage generating circuit is configured to generate a DC negative high voltage, thereby ionizing the gas to form a charged ion cloud; and a sensing receiving module, the sensing receiving module comprising a second electric field plate, three sets of detecting pins and a sensing circuit, the three sets of detecting pins are vertically disposed on the second electric field plate, and thereby enclosing a sensing area, the center of the sensing area is set as a DC negative generated by the high voltage generating module The input point of the high voltage, when the wind is blown in, will change the distribution of the charged ion cloud in the sensing area, so that the amount of charge sensed by the three sets of probes is not equal, and the sensing circuit is responsible for the charge. The amount is not equal, receiving and outputting a sensing signal to a computer, and the computer receives and processes the sensing signal to calculate the wind direction, wind speed and air volume of the breeze. The three-dimensional sensing device of claim 1, wherein the high voltage generating circuit comprises an oscillating circuit, a driving circuit, a boosting circuit and a voltage doubling circuit, and the oscillating circuit is configured to generate a square wave signal. And outputting the square wave signal to the boosting circuit via the driving circuit, boosting the voltage by the boosting circuit, and then double-pressing and rectifying by the voltage doubler circuit to generate the DC negative high voltage. The three-dimensional sensing device of claim 2, wherein the boosting circuit is a piezoelectric transformer. The three-dimensional sensing device of claim 2, wherein the high voltage generating circuit further comprises a filter circuit, wherein the filter circuit is a high pass filter And low pass filter. The three-dimensional sensing device of claim 1, wherein the sensing circuit comprises a buffer circuit, a subtractor circuit, an amplifier circuit and a filter circuit, and the gas is applied due to the action of the DC negative high voltage. Ionization, the formed current is converted into a voltage value output in the buffer circuit, the difference is calculated through the subtractor circuit, and then the signal is amplified by the amplifier circuit, and finally transmitted through the filter circuit to output the sensing signal. . The three-dimensional sensing device of claim 1, wherein a fiber fluff is disposed between the first electrode plate and the second electrode plate to increase electrostatic conduction and improve sensing sensitivity. The three-dimensional sensing device of claim 1, wherein a spacer is further disposed on the periphery of the first electrode plate and the second electrode plate.