CN102377249B - Sensor system integrated with wireless energy transmitting and receiving device - Google Patents

Abstract

The invention discloses a sensor system, which includes a sensing element, which senses an external energy signal to convert the energy signal into an electric signal; a rectification filter, which rectifies and filters the electric signal, so as to obtain stable and continuous charging current; a voltage regulator, which adjusts the charging current to a predetermined voltage; an energy storage, which stores the charging current at a predetermined voltage in the form of chemical energy; and a rectifier inverter, which inverts the chemical energy into the energy needed. The sensor system of the present invention utilizes the sensing and power generation performance of the sensor element to combine them during use, and realizes the power generation function while meeting the sensing purpose, so as to realize an energy-saving and environment-friendly power generation mode.

Description

Sensor system integrating wireless energy transmitter and receiver

technical field

The invention relates to the field of sensors, in particular, the invention relates to a sensor integrating wireless energy transmitting and receiving devices.

Background technique

A sensor is a device or device that can sense a specified measured value and convert it into a usable signal according to a certain rule. It usually consists of a sensitive element and a conversion element. As a detection device, the sensor can feel the measured information, and can transform the detected information into electrical signals or other required forms of information output according to certain rules, so as to meet the requirements of information transmission, processing, storage, display, recording and control requirements. It is the first link to realize automatic detection and automatic control.

At present, sensors such as photoelectric, vibration, piezoelectric, etc., are widely used in various fields of human activities. As a signal source, the sensor’s subsequent conditioning circuit includes charge amplification, noise filtering, and digital-to-analog conversion. An additional voltage source is required. This complicates the power supply of the sensor system. Moreover, when considering the application prospect of the sensor, only the analysis of its signal is considered, and there is no reasonable application plan for the conversion of other energy such as light and machinery into electrical energy.

On the other hand, the sensor can be used as an energy converter in realizing energy conversion, and can realize the conversion of other forms of energy into electrical energy. In the development of new low-carbon energy sources, this energy conversion can be applied in power generation devices as potential new energy sources. Taking the piezoelectric sensor as an example, many current application prospects are mainly to use the vibration energy of the road surface to generate electricity for the road lighting system, to realize the energy collection of the piezoelectric floor, thermal insulation shoes and other devices, which are mainly limited to the direct application of energy or storage of energy.

Both sensors and generators have applications or application prospects as separate devices. All sensor systems require DC or AC voltage devices to provide power for their signal processing circuits, resulting in poor portability, poor green performance, and high environmental requirements. The sensor system is also a transducer that converts mechanical energy into electrical energy, and the energy is not used reasonably, resulting in energy loss. The current sensing or power generation components have a single function, and often only start from a single goal of realizing the sensing or power generation function.

So far, the sensor and the power generation device have not been used in combination, that is, the signal generated by it is stored and utilized while sensing, and the output signal can be stored or transmitted through a wireless transmitting device and received through an energy receiving device. Nor is the converted energy of the sensor currently being used for its own energy requirements.

Contents of the invention

The purpose of the present invention is to at least solve one of the above-mentioned technical defects, especially aiming at applying the converted energy of the sensor to its own energy demand, realizing the power generation function while satisfying the sensing purpose, so as to realize an energy-saving and environment-friendly power generation method, and propose A sensor system integrating wireless energy transmitting and receiving devices is proposed.

In order to achieve the above object, one aspect of the embodiments of the present invention proposes a sensor system integrating a wireless energy transmitting device. The wireless energy transmitting device is integrated into the sensor system, and the energy generated by the sensor transduction is used as the energy of the sensor system. Energy source for signal processing circuits.

According to an embodiment of the present invention, the sensor system includes: a sensing element, which senses an external energy signal to convert the energy signal into an electrical signal; a rectification filter, which The electrical signal is rectified and filtered to obtain a stable and continuous charging current; a voltage regulator, the voltage regulator adjusts the charging current to a predetermined voltage; an energy storage, the energy storage converts the predetermined voltage in the form of chemical energy The charging current is stored; and a rectification inverter, the rectification inverter converts the chemical energy into an energy source required by the signal processing circuit of the sensor system, wherein the signal processing circuit includes the rectification filter and the voltage regulator.

When the energy generated by the sensor system is greater than the energy required by the signal processing circuit of the sensor system, the wireless transmitting device is used to transmit the remaining energy for use by other loads.

The wireless energy transmitting device transmits the energy generated by the sensor system through wireless electromagnetic energy propagation.

Another aspect of the embodiments of the present invention proposes a sensor system integrating a wireless energy receiving device. The wireless energy receiving device is integrated into the sensor system, and the energy generated by the sensor transduction is used as the signal processing circuit of the sensor system. energy source.

According to an embodiment of the present invention, the sensor system includes: a sensing element, which senses an external energy signal to convert the energy signal into an electrical signal; a rectification filter, which The electrical signal is rectified and filtered to obtain a stable and continuous charging current; a voltage regulator, the voltage regulator adjusts the charging current to a predetermined voltage; an energy storage, the energy storage converts the predetermined voltage in the form of chemical energy The charging current is stored; and a rectification inverter, the rectification inverter converts the chemical energy into an energy source required by the signal processing circuit of the sensor system, wherein the signal processing circuit includes the rectification filter and the voltage regulator.

When the energy generated by the sensor system's sensing transduction is less than the energy required by the signal processing circuit of the sensor system, the wireless energy receiving device is used to receive energy from an external energy source.

The energy required by the signal processing circuit of the sensor system is provided by the energy generated by the sensor system and/or the energy received by the wireless energy receiving device from an external energy source.

Moreover, the wireless energy receiving device receives energy from an external energy source through wireless electromagnetic energy propagation.

Another aspect of the embodiments of the present invention proposes a sensor system, the sensor system includes: a sensing element, the sensing element senses an external energy signal to convert the energy signal into an electrical signal; rectification and filtering The rectifier, the rectifier filter rectifies and filters the electrical signal to obtain a stable and continuous charging current; the voltage regulator, the voltage regulator adjusts the charging current to a predetermined voltage; the energy storage, the energy storage storing the charging current at a predetermined voltage in the form of chemical energy; and a rectifying inverter that inverts the chemical energy into energy required by the load.

According to the sensor system provided by the embodiment of the present invention, the sensing and power generation functions of the sensing element are reasonably combined, and the energy generated by the sensing transduction can be used as the energy source of its own signal processing circuit or other loads, realizing energy-saving green power generation and sensing.

In addition, the sensing element and the wireless energy transmitting and receiving device are integrated to realize the wireless transmission of energy. When the sensing power consumption of the sensing element is greater than the energy provided by itself, the wireless energy receiving device can receive the transmitted energy from the outside, omitting the large-volume voltage source and reducing the requirements on the environment.

When the energy consumption of the sensing function of the sensing element is less than the energy provided by itself, the remaining energy can be emitted by the wireless energy transmitting device for other purposes. The sensing and power generation performance of the sensing element is used to combine it during use, so as to meet the sensing purpose and realize the power generation function at the same time, so as to realize an energy-saving and environmentally friendly power generation method.

The above-mentioned solution proposed by the present invention requires little modification to the existing system, does not affect the compatibility of the system, and is simple and efficient to implement.

Additional aspects and advantages of the invention will be set forth in part in the description which follows, and in part will be obvious from the description, or may be learned by practice of the invention.

Description of drawings

The above and/or additional aspects and advantages of the present invention will become apparent and easy to understand from the following description of the embodiments in conjunction with the accompanying drawings, wherein:

Fig. 1 is a structural block diagram of a sensor system according to an embodiment of the present invention;

Fig. 2 is a structural block diagram of a sensor system integrating a wireless energy transmitting device implemented according to the present invention;

Fig. 3 is a structural block diagram of a sensor system integrating a wireless energy receiving device implemented according to the present invention;

Fig. 4 is a schematic diagram of transmission energy of a wireless energy transmitting and receiving device and a sensor system according to an embodiment of the present invention.

Detailed ways

Embodiments of the present invention are described in detail below, examples of which are shown in the drawings, wherein the same or similar reference numerals designate the same or similar elements or elements having the same or similar functions throughout. The embodiments described below by referring to the figures are exemplary only for explaining the present invention and should not be construed as limiting the present invention.

Referring to FIG. 1 , this figure is a structural block diagram of a sensor system according to an embodiment of the present invention.

As shown in FIG. 1 , the sensor system according to the embodiment of the present invention includes a sensor 2 , an energy storage 3 and a rectifier inverter 4 . Wherein, the sensor 2 includes a sensing element 22 , a rectification filter 24 and a voltage regulator 26 .

The sensing element 22 senses external energy signals, such as force, light, heat, etc., and converts the energy signals into electrical signals. However, the signal does not have a stable and continuous charging current for a long time, so the rectification filter 24 needs to be used to rectify and filter the electrical signal to obtain a stable and continuous charging current. And, the charging current output by the rectification filter 24 is adjusted to a predetermined voltage by the voltage regulator 26 .

The energy storage 3 stores the charging current of the predetermined voltage output by the voltage regulator 26 in the form of chemical energy. The energy storage 3 can be, for example, a storage battery and other equipment, wherein the capacity of the energy storage 3 and other characteristic parameters can be converted according to the energy of the sensor 2. The size and reasonable choice.

The energy in the form of chemical energy can be further passed through the rectifying inverter 4, so that the chemical energy can be converted into AC or DC power required by the load 10 for use by other load users.

When the rectifier inverter 4 reverses the chemical energy into the electrical energy required by the sensor 2 and provides it to the sensor 2, the energy generated by the sensor system can be used as an energy source for its own signal processing circuit, where the signal processing circuit can It includes a rectification filter 24, a voltage regulator 26, and other sensor subsequent conditioning circuits, such as processing circuits such as charge amplification, noise filtering, and digital-to-analog conversion (not shown in the figure). Of course, the electric energy output by the rectifier inverter 4 can also supply power to the electrical devices or circuits required when the sensor element 22 is connected to its signal processing circuit.

Compared with the current sensor system that requires a DC or AC voltage device to provide power for its signal processing circuit, the invention has good portability and lower environmental requirements.

Fig. 2 shows a structural block diagram of a sensor system integrating a wireless energy transmitting device according to an embodiment of the present invention. As shown in the figure, the wireless energy transmitting device 5 is integrated into the sensor system, and the energy generated by the sensor system is used as the energy source of its own signal processing circuit.

As shown in FIG. 4 , in order to achieve the purpose of sensing, the signal processing circuit of the sensor system needs to consume external energy, which can be provided by the energy generated by itself.

According to the embodiment of the present invention, the sensor system and the wireless energy transmitting device 5 are integrated together, and the charges generated by the sensing elements of the sensor system are transmitted through wireless electromagnetic energy propagation. The energy generated by the sensor transduction can be used as the energy source of its own signal processing circuit. When the energy generated by the sensing transduction of the sensor system is greater than the sensing power consumption of its sensing elements, that is, the energy required by its signal processing circuit, the wireless energy transmitting device 5 is used to transmit the remaining energy for other equipment applications.

It can be seen from FIG. 4 that the wireless energy transmitting device 5 can transmit the remaining energy in the energy storage 4 such as a storage battery to an external load or an energy storage device 6 . The wireless energy transmitting device 5 can transmit the energy generated by the sensor system through wireless electromagnetic energy propagation. The wireless energy transmitting device 5 is a device that transmits the remaining energy. The energy can be used as an external energy source for other energy-consuming loads, and transmitted via energy transmitting stations such as radio frequency and other wireless transmission methods.

Another aspect of the embodiments of the present invention discloses a sensor system integrated with a wireless energy receiving device. FIG. 3 shows a schematic structural diagram of the sensor integrated with the wireless energy receiving device. As shown in FIG. 3 , the wireless energy receiving device 7 is integrated into the sensor system, and the energy generated by the sensor transduction is used as the energy source of the signal processing circuit of the sensor system.

When the energy generated by the sensing transduction of the sensor system is less than the sensing power consumption of its sensing elements, that is, the energy provided by itself cannot meet the needs, the wireless energy receiving device 7 receives the energy source 8 from the outside. Wherein, the external energy source 8 is energy transmitted through electromagnetic. As a result, a large-volume voltage source can be omitted, reducing requirements on the environment.

Generally speaking, the external energy source 8 is an energy transmitting power station, which can transmit energy at fixed points between the energy transmitting station and the wireless energy receiver 7; in addition, this structure can also be integrated with various devices that convert other energy into electric energy, and the Devices that convert other energy into electrical energy include devices that convert mechanical energy, solar energy, wind energy, etc. into electrical energy.

Specifically, as shown in FIG. 4 , in order to realize the sensing purpose of the sensor system, its signal processing circuit needs to consume external energy. The energy can be generated by itself, or can receive energy from an external energy source 8, such as an energy transmitting station or an integrated energy conversion device, through the wireless energy receiving device 7 .

According to the embodiment of the present invention, the sensor system is integrated with the wireless energy receiving device 7 and the wireless energy transmitting device 5, and the charges generated by the sensing elements of the sensor system are transmitted through wireless electromagnetic energy propagation. The energy generated by the sensor transduction can be used as the energy source of its own signal processing circuit. When the energy generated by the sensing transduction of the sensor system is greater than the sensing power consumption of its sensing elements, that is, the energy required by its signal processing circuit, the wireless energy transmitting device 5 is used to transmit the remaining energy for other equipment applications. It can be seen from FIG. 4 that the wireless energy transmitting device 5 can transmit the remaining energy to the wireless energy receiving device 7 and/or the external load or the energy storage device 6 .

When the energy generated by the sensing transduction of the sensor system is less than the sensing power consumption of its sensing elements, that is, the energy provided by itself cannot meet the needs, the wireless energy receiving device 7 receives the external energy source 8 . Wherein, the external energy source 8 is energy transmitted through electromagnetic. As a result, a large-volume voltage source can be omitted, reducing requirements on the environment.

On the premise that the energy generated by the sensor system’s sensing energy is greater than or less than the sensing power consumption of its sensing element, control the corresponding on or off states of ① and ②, so as to determine that the wireless energy transmitting device 5 will come from the rectification inverter The remaining energy of the converter 4 is sent out, or the external energy from the external energy source 8 is received by the wireless energy receiving device 7 .

Preferably, the sensing element of the sensor system comprises a pressure sensor, a piezoelectric sensor or a magnetic sensor. The above-mentioned types of sensors can be integrated with the wireless energy transmitting device and/or the wireless energy receiving device to realize the functions involved in the above-mentioned embodiments.

According to the sensor system integrating wireless energy transmitting and receiving devices provided by the embodiments of the present invention, the sensing and power generation functions of the sensing elements are reasonably combined to realize energy-saving and green power generation and sensing. Integrate sensing elements and wireless energy transmitting and receiving systems to realize wireless transmission of energy.

When the sensing power consumption of the sensing element is greater than the energy provided by itself, the wireless energy receiving device can receive the transmitted energy from the outside, omitting the large-volume voltage source and reducing the requirements on the environment. When the energy consumption of the sensing function of the sensing element is less than the energy provided by itself, the remaining energy can be emitted by the wireless energy transmitting device for other purposes. The sensing and power generation performance of the sensing element is used to combine it during use, so as to meet the sensing purpose and realize the power generation function at the same time, so as to realize an energy-saving and environmentally friendly power generation method.

Those of ordinary skill in the art can understand that all or part of the steps carried by the methods of the above embodiments can be completed by instructing related hardware through a program, and the program can be stored in a computer-readable storage medium, and the program can be executed when executed , including one or a combination of the steps of the method embodiment.

In addition, each functional unit in each embodiment of the present invention may be integrated into one processing module, each unit may exist separately physically, or two or more units may be integrated into one module. The above-mentioned integrated modules can be implemented in the form of hardware or in the form of software function modules. If the integrated modules are realized in the form of software function modules and sold or used as independent products, they can also be stored in a computer-readable storage medium.

The storage medium mentioned above may be a read-only memory, a magnetic disk or an optical disk, and the like.

The above is only a preferred embodiment of the present invention, it should be pointed out that, for those of ordinary skill in the art, without departing from the principle of the present invention, some improvements and modifications can also be made, and these improvements and modifications can also be made. It should be regarded as the protection scope of the present invention.

Claims (8)

1. A sensor system, characterized in that the sensor system comprises: a sensing element, the sensing element senses an external energy signal to convert the energy signal into an electrical signal; A rectification filter, which rectifies and filters the electrical signal to obtain a stable and continuous charging current; a voltage regulator that adjusts the charging current to a predetermined voltage; an energy store that stores said charging current at a predetermined voltage in the form of chemical energy; and a rectifier inverter, the rectifier inverter converts the chemical energy into the energy required by the load; The load includes the sensing element, the rectification filter and the voltage regulator. 2. A sensor system integrating a wireless energy transmitting device, characterized in that the wireless energy transmitting device is integrated with the sensor system, and the energy generated by the sensor system sensing transduction is used as the energy of the signal processing circuit of the sensor system source; The sensor system includes: a sensing element, the sensing element senses an external energy signal to convert the energy signal into an electrical signal; A rectification filter, which rectifies and filters the electrical signal to obtain a stable and continuous charging current; a voltage regulator that adjusts the charging current to a predetermined voltage; an energy store that stores said charging current at a predetermined voltage in the form of chemical energy; and a rectifier inverter, the rectifier inverter converts the chemical energy into an energy source required by the load, the load includes the sensor element and the signal processing circuit of the sensor system, wherein the signal processing circuit includes the rectifier filter and the voltage regulator. 3. The sensor system according to claim 2, characterized in that, when the energy generated by the sensor system sensing transduction is greater than the energy required by the signal processing circuit of the sensor system, the wireless energy transmitting device is used The remaining energy is emitted for other loads to use. 4. The sensor system according to claim 3, wherein the wireless energy transmitting device transmits the energy generated by the sensor system through wireless electromagnetic energy propagation. 5. A sensor system integrating a wireless energy receiving device, characterized in that the wireless energy receiving device is integrated with the sensor system, and the sensor system senses the energy generated by transduction as a signal processing circuit of the sensor system energy source; The sensor system includes: a sensing element, the sensing element senses an external energy signal to convert the energy signal into an electrical signal; A rectification filter, which rectifies and filters the electrical signal to obtain a stable and continuous charging current; a voltage regulator that adjusts the charging current to a predetermined voltage; an energy store that stores said charging current at a predetermined voltage in the form of chemical energy; and a rectifier inverter, the rectifier inverter converts the chemical energy into an energy source required by the load, the load includes the sensor element and the signal processing circuit of the sensor system, wherein the signal processing circuit includes the rectifier filter and the voltage regulator. 6. The sensor system according to claim 5, wherein when the energy generated by the sensor system is less than the energy required by the signal processing circuit of the sensor system, the wireless energy receiving device is used to Receive energy from an external energy source. 7. The sensor system according to claim 6, wherein the wireless energy receiving device receives energy from an external energy source through wireless electromagnetic energy propagation. 8. The sensor system according to claim 5, wherein the energy required by the signal processing circuit of the sensor system is generated by the sensor system and/or received by the wireless energy receiving device from an external energy source energy supply.