KR101045954B1 - A power generating device and method thereof, and a sensing device comprising the power generating device - Google Patents

Abstract

The present invention discloses a power generation apparatus and method for generating power by using wind and road vibrations generated as a vehicle travels. The present invention also discloses a sensing device that contributes to monitoring a vehicle traveling on a road using the power generating device. The present invention provides an electrical energy generating unit for generating electrical energy using pressure or wind generated by an external moving object; A charging unit configured to charge power by using the generated electrical energy; And a transmitting / receiving unit which is driven by using a charged power source and transmits and receives an RF signal with a moving object located within a predetermined distance. According to the present invention, facility maintenance is convenient, and manpower and costs required for installation and maintenance can be reduced. It is also environmentally friendly for energy generation and use.

Power Generation, Vibration Energy, Self-Generation, Piezoelectric Elements, Ubiquitous Sensor Networks, Unmanned Surveillance Cameras

Description

Apparatus and method for generating electric power, and device for sensing with the said apparatus}

The present invention discloses a power generation apparatus, a method thereof, and a sensing apparatus including the power generation apparatus. In particular, the present invention discloses a power generation apparatus and method for generating power using wind and road vibrations generated as a vehicle travels. The present invention also discloses a sensing device which is driven by electric power generated by magnetic force and acquires information on a traffic situation and uses it for road safety management.

Conventionally, traffic police officers have been put directly on-site or using unmanned surveillance camera systems to discern vehicles in violation of the lane lane and crack down on speeding vehicles. However, the method of directly injecting manpower into the field has many disadvantages such as traffic congestion and necessity of recruiting manpower.

The unmanned surveillance camera system uses a speed measuring device and a camera to measure the speed of the vehicle, and the camera takes a picture of the vehicle for a vehicle that violates the specified speed based on the result of the speed measuring device. . The speed measuring device measures a vehicle speed by using a loop coil, a high frequency wave, a laser, an ultrasonic wave, and the like, and a contact coil type coil is frequently used.

However, the conventional unmanned surveillance camera system is powered from the outside or driven using a battery. Unattended surveillance camera systems must be connected to a power line to receive power from the outside. However, this infrastructure configuration has a problem that a lot of manpower and cost is put into maintenance as well as installation. On the other hand, if the unmanned surveillance camera system is driven by a battery can solve the above problems. However, the time driven by the battery consumption is very limited, and it is inconvenient to check frequently from time to time to prevent the operation.

The present invention has been made to solve the above problems, comprising a power generating device and method for generating power by the magnetic force by using the vibration of the wind and road generated in accordance with the driving of the vehicle, and the power generating device It is an object to provide a sensing device.

The present invention has been made in order to achieve the above object, the electrical energy generating unit for generating electrical energy by using the pressure or wind generated by the external moving body; A charging unit configured to charge power by using the generated electrical energy; And a transmitting / receiving unit which is driven by using the charged power and transmits and receives an RF signal with the moving object located within a predetermined distance.

Preferably, the sensing device comprises: an output voltage measuring unit measuring the charged power supply voltage and determining whether the measured voltage is greater than or equal to a predetermined reference voltage; And switching from time to time when the measured voltage is greater than or equal to the reference voltage and starts driving and changes the switching on a predetermined time basis so that the power charged in the power source is doubled.

Preferably, the electrical energy generation unit uses the wind generated when the vehicle runs on the road by the wind, and uses the vibration of the road generated when the vehicle runs on the road by the pressure.

Preferably, the sensing device is provided in a traveling vehicle monitoring system for monitoring a vehicle traveling on a road. More preferably, the sensing device is mounted on a central separator located on the road, mounted on the road in the form of a pillar, or attached to at least one of street lamps, street trees, and road signs adjacent to the road. In addition, the sensing device is whether the violation of the prescribed speed of the vehicle, whether the violation of the dedicated lane of the vehicle, the collection of highway tolls, whether it is a stolen vehicle or a vehicle used in crime, and whether or not parking in violation of the parking lot for the disabled Determine at least one.

In addition, the present invention is an electrical energy generating unit for generating electrical energy from the external pressure; A charging unit configured to charge power by using the generated electrical energy; An output voltage measuring unit measuring the charged power supply voltage and determining whether the measured voltage is greater than or equal to a predetermined reference voltage; And starting driving when the measured voltage is equal to or greater than the reference voltage, and switching the switching unit every time so as to double the power charged in the power source.

Preferably, the electric energy generating unit uses wind generated when the vehicle travels on a road or vibration of the road as the external pressure.

Preferably, the power generation device further includes a resonance unit connected to one end of the occasional switching switching unit and resonating in parallel whenever there is a voltage application from the occasional switching switching unit. In this case, the charging unit may charge the sub power when the electric energy generating unit generates the electric energy, and charges the main power when the generated electric energy passes through the occasional switching switching unit and the resonating unit in order. .

Preferably, the occasional switching switching unit changes the switching according to a predetermined displacement value or a switching change signal received.

In addition, the present invention comprises the steps of (a) generating electrical energy from external pressure; (b) charging the power using the generated electrical energy; (c) measuring the charged power supply voltage and determining whether the measured voltage is greater than or equal to a predetermined reference voltage; And (d) multiplying the power charged to the power source by changing the switching every predetermined time when the measured voltage is equal to or greater than the reference voltage.

According to the present invention, the following effects can be obtained by providing a power generation device that generates power by using wind and road vibrations generated as the vehicle travels. First, there is no inconvenience to visit and check at any time by replacing the battery at any time. In other words, facility maintenance is very convenient. Second, when it comes to power supply, there is no need for a separate infrastructure and input of manpower and cost. In other words, it is possible to reduce the manpower and costs required for installation and maintenance than before. Third, by using vibration energy for power generation, it is pollution-free and environmentally friendly with solar power generation.

Hereinafter, preferred embodiments of the present invention will be described in detail with reference to the accompanying drawings. First, in adding reference numerals to the components of each drawing, it should be noted that the same reference numerals are assigned to the same components as much as possible even if displayed on different drawings. In the following description of the present invention, a detailed description of known functions and configurations incorporated herein will be omitted when it may make the subject matter of the present invention rather unclear. In addition, the following will describe a preferred embodiment of the present invention, but the technical idea of the present invention is not limited thereto and may be variously modified and modified by those skilled in the art.

1 is a block diagram illustrating an internal configuration of a power generation device according to a preferred embodiment of the present invention. 2 is a circuit diagram of an embodiment of a power generation device according to a preferred embodiment of the present invention. 1 and 2, the power generating apparatus 100 includes an electric energy generating unit 110, an external pressure receiving unit 111, a charging unit 120, a power supply unit 121, an output voltage measuring unit 130, and a first unit. The switch 140, the second switch 150, and the controller 160 are included.

The power generating device 100 is mounted on a central separator on the road and is provided in a sensing device for determining whether the vehicle detects speeding, violates a dedicated lane, and the like. A sensing device including the power generation device 100 will be described later.

The external pressure accommodating part 111 is in the form of a crystal plate for receiving the pressure applied from the outside, and crystals such as quartz, tourmaline, sodium tartrate (rochelle salt), barium titanate, ammonium dihydrogen phosphate, etc. And artificial crystals such as ethylene diamine tartarate. In the exemplary embodiment of the present invention, the pressure applied from the outside may include wind generated by driving of the vehicle and vibration of the road.

The electrical energy generating unit 110 performs a function of generating electrical energy by using the external pressure accommodated by the external pressure receiving unit 111. The method of generating the electrical energy by the electrical energy generator 110 is as follows. When external pressure is applied to the external pressure receiving portion 111 in a predetermined direction from the outside, positive and negative charges in proportion to the external pressure are generated on both sides of the external pressure receiving portion 111 in the form of a crystal plate, respectively. Then, current flows by these charges, and energy is accumulated in the first capacitor C1. Accumulated energy is provided as an electrical energy source.

Since the external pressure receiving unit 111 and the electric energy generating unit 110 generate electric energy using pressure, the external pressure receiving unit 111 and the electric energy generating unit 110 may be implemented as a piezoelectric element generating electric energy using a piezoelectric effect.

The charging unit 120 performs a function of charging the power supply unit 121 using the electrical energy generated by the electrical energy generating unit 110. In this case, the power supply unit 121 includes at least one battery. On the other hand, since the AC current in the electrical energy generating unit 110 needs to be converted into a DC component before reaching the charging unit 120, the rectification (rectification) between the electrical energy generating unit 110 and the charging unit 120 The rectifying unit 170 functioning may be provided. As shown in FIG. 2, the rectifier 170 may include four diodes D1, D2, D3, and D4.

The output voltage measuring unit 130 performs a function of measuring the output voltage output from the power supply unit 121. In addition, the output voltage measuring unit 130 compares the measured output voltage with a predetermined reference voltage to determine whether the output voltage is greater than or equal to the reference voltage. In addition, the output voltage measuring unit 130 performs a function of driving the first switching unit 140 and the second switching unit 150 when the output voltage is more than the reference voltage.

The first switching unit 140 includes at least one mode switch, and maintains the OPEN state before there is a driving signal from the output voltage measuring unit 130. When the first switching unit 140 receives the driving signal from the output voltage measuring unit 130, the first switching unit 140 continuously maintains the CLOSE state.

The second switching unit 150 includes at least one harvesting switch, and maintains the OPEN state like the first switching unit 140 until there is a driving signal from the output voltage measuring unit 130. The output voltage measuring unit 130 outputs a signal only once to the first switching unit 140. The signal at this time is a drive signal for commanding driving. On the other hand, the output voltage measuring unit 130 continuously outputs a signal to the second switching unit 150 at a predetermined time interval. In this case, the first signal received by the second switching unit 150 is a driving signal, but the signals received thereafter are switching change signals which command a switching change. Therefore, the second switching unit 150 also performs a function of continuously changing the switching at a predetermined time interval according to the signal output from the output voltage measuring unit 130. Here, switching change means repeating OPEN and CLOSE of a switch.

When the second switching unit 150 changes the switching every predetermined time, the output voltage increases more than several times (ex. 2 to 3 times) by the action of the resonance unit 180 connected to the second switching unit 150. . The resonator 180 performs a resonance function and may be configured by connecting at least one reactor L and a capacitor C2 in parallel.

Meanwhile, in the exemplary embodiment of the present invention, the power supply unit 121 may be configured to be charged according to before and after the driving of the switching units 140 and 150. In this case, the power supply 121 that is initially charged to drive the two switching units 140 and 150 is a sub-power supply unit, and the power supply unit 121 is charged with an increased voltage as the two switching units 140 and 150 are driven. ) Can be set as the main power supply.

The controller 160 performs a function of controlling the overall operation of all components 110 to 180 constituting the power generating device 100.

Meanwhile, the second switching unit 150 may change the switching independently without depending on the switching change signal of the output voltage measuring unit 130. In this case, the output voltage measuring unit 130 outputs only a driving signal to the second switching unit 150. Then, the second switching unit 150 starts operation based on the received driving signal, and performs a function of changing the switching every predetermined time according to the programmed content.

Next, a method of generating power using the power generating device 100 will be described. 3 is a flowchart of a power generation method according to a preferred embodiment of the present invention. A description with reference to FIG. 3 is as follows.

First, when pressure is applied in a predetermined direction from the outside, the external pressure receiving portion 111 accommodates it (S300). Thereafter, the electrical energy generator 110 generates electrical energy using the received external pressure (S305). Thereafter, the charging unit 120 charges the power supply unit 121 using the generated electrical energy (S310). The electric current is used to transfer the generated electric energy from the electric energy generating unit 110 to the charging unit 120, and this current is preferably rectified through the rectifying unit 170 in the transferring process.

The power supply unit 121 outputs a charged voltage for driving the power generating device 100 (S315). At this time, the output voltage measuring unit 130 measures the voltage output from the power supply unit 121 (S320). After the output voltage measurement, the output voltage measuring unit 130 compares the measured output voltage with a predetermined reference voltage. Then, the output voltage measuring unit 130 determines whether the output voltage is greater than or equal to the reference voltage (S325). If the output voltage is greater than or equal to the reference voltage, the output voltage measuring unit 130 drives the first switching unit 140 and the second switching unit 150 (S330). Thereafter, the output voltage measuring unit 130 changes the switching of the second switching unit 150 at a predetermined time interval (S335). On the other hand, if the output voltage is less than the reference voltage, the output voltage measuring unit 130 measures the output voltage again after a predetermined time.

In the above, since the reference voltage needs to be sufficient to perform a switching function, it is preferable that the voltage is 0.5V to 1.5V in the embodiment of the present invention. On the other hand, the output voltage measuring unit 130 may be further subdivided into an output voltage measuring unit for measuring voltage, a comparing unit for comparing function, a determining unit for determining function, a switching driver involved in switching driving, and the like.

When there is a driving command from the output voltage measuring unit 130 according to step S330, the first switching unit 140 switches from the SWITCH OFF state to the SWITCH ON state and maintains this state. On the other hand, the second switching unit 150 repeatedly switches to the SWITCH ON state and the SWITCH OFF state whenever there is a switching change command from the output voltage measuring unit 130.

As the operation S335 proceeds, the resonator 180 connected to the second switching unit 150 further increases the output voltage (S340). The sequential progress of steps S335 and S340 makes the output larger than the generated voltage so that the power generating device 100 or the sensing device including the power generating device 100 operates smoothly without a separate power supply.

Next, a sensing device including the power generation device 100 described with reference to FIGS. 1 to 3 will be described. The sensing device is mounted on a central separator on the road or in a columnar shape near the central separator. The sensing device is used to determine whether the vehicle detects speed, violates a dedicated lane, and generates power by using wind and road vibration generated as the vehicle travels. Hereinafter, an application example of the sensing device will be described with reference to the drawings.

4 is a conceptual diagram of a traveling vehicle monitoring system according to a preferred embodiment of the present invention. According to FIG. 4, the driving vehicle monitoring system 400 includes a vehicle information storage medium 410, a sensing device 420, a wired / wireless communication network 430, and a central management station server 440.

The driving vehicle monitoring system 400 is a system implemented based on a sensor network such as a wireless sensor network (WSN), an ubiquitous sensor network (USN), and the like, but is not necessarily limited thereto, and may include satellite communication such as a global positioning system (GPS). It is also possible to build on a network.

The vehicle information storage medium 410 is attached to a vehicle traveling on a road, and is implemented as an information storage medium that can read information recorded by wireless communication, such as an RFID tag and an electronic vehicle registration certificate. Information stored by the vehicle information storage medium 410 may include information about a vehicle such as a vehicle number, a license plate, a year, and a vehicle, and personal information of a driver or a vehicle owner. On the other hand, the vehicle information storage medium 410 may be embedded in the history of the accident of the driver or the owner, the history of traffic violations, and the like.

The sensing device 420 is a device for sensing information about a vehicle or a vehicle owner stored in the storage medium 410 from a driving vehicle, and an object moving at high speed through an RFID reader, a sensor node, and a zigbee communication. It may be implemented as an access point (AP) for acquiring information from the device. Since the sensing device 420 includes the power generating device 100 described with reference to FIGS. 1 to 3, and generates power by itself, it does not require a separate power source. The sensing device 420 may be implemented in the form of a column having a predetermined height at the central separator on the road or where the central separator is located. In addition, the sensing device 420 may be attached to a street lamp or roadside street sign.

The sensing device 420 may be implemented as an RFID reader as shown by reference numeral 421 when installed in an object located at a low position from a road surface such as a central separator. On the other hand, the sensing device 420 may be implemented as a sensor node as indicated by reference numeral 422 when installed in an object located high from the road surface, such as a street lamp or a road sign. On the other hand, the sensing device 420 implemented as an RFID reader, that is, the sensing device 420 mounted on an object located at a lower position from the road surface is a vibration detector to generate electrical energy from the vibration of the road generated as the vehicle travels. It may be implemented to include.

The wired / wireless communication network 430 is a network that transmits the information sensed by the sensing device 420 to the central office server 440. The wired / wireless communication network 430 includes various wired / wireless communication through a base station and satellite communication through a satellite.

The central office server 440 determines whether a violation of a prescribed speed of the vehicle, a violation of a dedicated lane of the vehicle, and the like is performed based on the information sensed by the sensing device 420. The violation of the dedicated lane may be performed by a method of recognizing the driving lane of the vehicle based on the recognition distance to the vehicle measured by the sensing device 420. On the other hand, the central management server 440 performs a function of recording and managing the sensing information as well as the result of building and determining the database.

Meanwhile, according to the exemplary embodiment of the present invention, the sensing device 420 may also perform a function of determining whether a prescribed speed violation or a dedicated lane violation has occurred.

The method of controlling the violation of the highway dedicated lane using the driving vehicle monitoring system 400 described with reference to FIG. 4 may include the following steps. In the first step, the vehicle enters the highway. In the second step, a signal is continuously transmitted from the active RFID mounted on the vehicle. In the third step, information is collected from an RFID reader mounted on a central separator. In the fourth step, the driving lane of the current vehicle is recognized through the recognition distance measurement. The fifth step is to determine whether the recognized driving lane is a vehicle-only lane. Step 6, it is determined whether the vehicle is a dedicated lane driving vehicle according to the stored vehicle information. Step 7, in the case of a violation vehicle, transmits vehicle information to a nearby sensor node. In an eighth step, information is transmitted from the sensor node to the base station. Step 9, crack down on the offending vehicle.

In addition, the highway speed violation control method may proceed as follows. In the first step, the first RFID reader recognizes the information of the driving vehicle. In a second step, the information of the same vehicle is recognized by the second RFID reader spaced from the first RFID reader. In the third step, the speed of the driving vehicle is measured based on the information acquired from the two RFID readers. In a fourth step, information about the speeding vehicle is transmitted to the central management system.

On the other hand, if the driving vehicle monitoring system 400 according to the present invention, the collection of highway tolls, the crackdown on bus lanes in violation of urban lanes, the crackdown on stolen vehicles and crime vehicles, the parking lot for disabled vehicles It is also possible to crack down on the situation.

The above description is merely illustrative of the technical idea of the present invention, and various modifications, changes, and substitutions may be made by those skilled in the art without departing from the essential characteristics of the present invention. will be. Accordingly, the embodiments disclosed in the present invention and the accompanying drawings are not intended to limit the technical spirit of the present invention but to describe the present invention, and the scope of the technical idea of the present invention is not limited by the embodiments and the accompanying drawings. . The scope of protection of the present invention should be interpreted by the following claims, and all technical ideas within the scope equivalent thereto should be construed as being included in the scope of the present invention.

The present invention provides a power generation device that generates power by using wind and road vibrations generated by driving of a vehicle, and a road management system that is always driven using the power generation device and provides information on road traffic. It relates to a sensing device that can be applied to. According to the present invention, since the sensing device uses the power generating device to supply power by itself, facility maintenance is convenient, and manpower and cost required for installation and maintenance can be reduced. In addition, the use of vibrational energy for power generation is pollution-free and environmentally friendly. The sensing device having the above effect can be applied to a sensor network configuration such as a ubiquitous sensor network (USN), a wireless sensor network (WSN), and the like, when the sensing device is utilized in a system for monitoring a vehicle traveling on a road. It is expected to replace the existing unmanned surveillance camera system.

1 is a block diagram illustrating an internal configuration of a power generation device according to a preferred embodiment of the present invention.

2 is a circuit diagram of an embodiment of a power generation device according to a preferred embodiment of the present invention.

3 is a flowchart of a power generation method according to a preferred embodiment of the present invention.

4 is a conceptual diagram of a traveling vehicle monitoring system according to a preferred embodiment of the present invention.

<Description of Symbols for Main Parts of Drawings>

100: power generating device 110: electric energy generating unit

111: external pressure accommodating part 120: charging part

121: power supply unit 130: output voltage measurement unit

140: first switching unit 150: second switching unit

170: rectifier 180: resonator

400: driving vehicle monitoring system 410: vehicle information storage medium

420: sensing device 430: wired and wireless communication network

440: Central Office Server

Claims (18)

An electrical energy generator for generating electrical energy by using pressure or wind generated by an external moving object; A charging unit configured to charge power by using the generated electrical energy; A transmission and reception unit which is driven by using the charged power and transmits and receives an RF signal with the moving object located within a predetermined distance; An output voltage measuring unit measuring the charged power supply voltage and determining whether the measured voltage is greater than or equal to a predetermined reference voltage; And When the measured voltage is greater than or equal to the reference voltage, driving is started, and the switching switch is changed from time to time according to a signal output by the output voltage measuring unit. Sensing device comprising a. delete The method of claim 1, The electrical energy generating unit uses the wind generated when the vehicle travels on the road by the wind, and uses the vibration of the road generated when the vehicle runs on the road by the pressure. The method of claim 1, The sensing device is a sensing device, characterized in that provided in the traveling vehicle monitoring system for monitoring a vehicle traveling on the road. The method of claim 4, wherein The sensing device is mounted on a central separator located on the road, installed in the form of a pillar on the road, or a sensing device, characterized in that attached to at least one of the street light, roadside, and road signs adjacent to the road. The method of claim 4, wherein At least one of whether the sensing device violates the prescribed speed of the vehicle, whether the vehicle violates a dedicated lane, collects a highway toll, whether it is a stolen vehicle or a vehicle used for crime, and whether the vehicle is parked in violation of a parking lot for persons with disabilities. Sensing device, characterized in that for determining. The method of claim 1, A resonator connected to one end of the occasional switching switching unit and resonating in parallel whenever there is a voltage applied from the occasional switching switching unit; Sensing device further comprises. The method of claim 7, wherein And the charging unit charges the sub power when the electrical energy generator generates the electrical energy, and charges the main power when the generated electrical energy passes through the switching mode and the resonator in order. The method of claim 8, The occasional switching switching unit is characterized in that for switching the switching in accordance with a predetermined displacement value or a received switching change signal. The method of claim 6, And the sensing device is attached to the vehicle and performs the determination using an electronic vehicle registration certificate containing identification information of the vehicle or personal information of a vehicle owner or a driver of the vehicle. An electrical energy generator for generating electrical energy from external pressure; A charging unit configured to charge power by using the generated electrical energy; An output voltage measuring unit measuring the charged power supply voltage and determining whether the measured voltage is greater than or equal to a predetermined reference voltage; And When the measured voltage is greater than or equal to the reference voltage, driving is started, and the switching switch is changed from time to time according to a signal output by the output voltage measuring unit. Power generation apparatus comprising a. The method of claim 11, The electric energy generating unit uses the wind generated when the vehicle runs on the road or the vibration of the road as the external pressure. The method of claim 11, A resonator connected to one end of the occasional switching switching unit and resonating in parallel whenever there is a voltage applied from the occasional switching switching unit; Power generation apparatus further comprising a. The method of claim 13, The charging unit charges the sub power when the electrical energy generating unit generates the electrical energy, and the power generating device charges the main power when the generated electrical energy passes through the switching mode and the resonator in order. . The method of claim 11, And the occasional switching switching unit changes the switching according to a predetermined displacement value or a received switching change signal. (a) generating electrical energy from external pressure; (b) charging the power using the generated electrical energy; (c) measuring the charged power supply voltage and determining whether the measured voltage is greater than or equal to a predetermined reference voltage; And (d) changing the switching in predetermined time units according to a signal output by the output voltage measuring unit performing the step (c) if the measured voltage is equal to or greater than the reference voltage; Power generation method comprising a. The method of claim 16, The external pressure in the step (a) is the wind generated when the vehicle runs on the road or the power generation method characterized in that the vibration of the road. The method of claim 16, The step (d) includes the step of resonating the applied voltage whenever there is a switching change.

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