KR100671423B1 - Network Sensor for Wire/Wireless Communication - Google Patents

Abstract

1. TECHNICAL FIELD OF THE INVENTION

The present invention relates to a network sensor for wired / wireless communication.

2. The technical problem to be solved by the invention

The present invention connects to an existing wired / wireless communication network using a serial read only memory (hereinafter, simply referred to as a 'ROM') containing ID data indicating the type and location of a sensor. It is intended to provide a network sensor for wired / wireless communication so that additional work is not required after installation by transmitting ID data indicating the type and location of the sensor as soon as possible and then sending output data detected in parallel. .

3. Summary of Solution to Invention

The present invention provides a network sensor for wired / wireless communication, comprising: a sensor unit for performing sensing; A signal amplifier for amplifying the detection signal of the sensor unit; And an ID storage unit for storing the ID data so that ID data indicating the type and position of the sensor unit can be added to the data transmitted from the signal amplifier.

4. Important uses of the invention

The present invention is used in smart building systems and the like.

Network Sensor, Smart Home, Smart Building, Sensor ID, Power Line, RF

Description

Network Sensor for Wired / Wireless Communication {Network Sensor for Wire / Wireless Communication}             

1 is a structural diagram of a first embodiment of a network sensor for wired / wireless communication according to the present invention;

2 is a structural diagram of a second embodiment of a network sensor for wired / wireless communication according to the present invention;

3 is a detailed structural diagram of an embodiment of the signal amplifier of FIG. 1 and FIG.

* Explanation of symbols for the main parts of the drawings

110: sensor driving unit 120: sensor unit

130: signal amplifier 140: ID storage unit

150: communication unit 151: A / D

152: power line communicator 153: RF communicator

The present invention relates to a network sensor for wired / wireless communication, and particularly for wire / wireless communication for easily performing recognition and exchange of data and ensuring convenience of maintenance and expansion in an environment using power line communication and wireless communication. Relates to a network sensor.

Recently, as smart homes and smart buildings are rapidly increasing, sensors are installed and operated in various places to control indoor environment and to perform security and safety-related control. Various sensors are increasing in utility in the field of smart home and smart building.

This reflects the current trend that requires a more efficient and more efficient control of residential spaces, away from conventional building management methods. In particular, the issue of pursuing optimal convenience of residential spaces and ensuring optimal energy consumption and safety are addressed. At the same time, it is attracting attention as a satisfactory alternative.

This trend is the same in the application area represented by the ubiquitous environment, and the sensor is installed and operated by expanding to the application target which is difficult or impossible to install the sensor and processing the output of each sensor in the form of the promised data. It is an object of the present invention to provide a function capable of acting as a minimum detection and processing unit having a function of doing so.

That is, in order to control the optimal living environment in real time, a sensor capable of more effective operation in the smart home and smart building fields is required.

Indeed, the biggest limitation when using sensors in the field of smart home and smart building is the establishment of a network for powering and transmitting signals to the sensor. In the case of limited facilities, additional equipment construction is required, and in the case of new facilities, construction costs are increased. Such a network includes a power supply for driving the sensor and a signal network for processing ID data analog line circuit (ID data alc) output data of the sensor.

In a more advanced automatic control environment, the complexity and scale of such a network is increased, which is a direct factor that reduces the applicability of the sensor in the field of smart home and smart building.

The present invention has been proposed to solve the above problems, and a serial read only memory (hereinafter, simply referred to as 'ROM') containing ID data indicating the type and installation location of a sensor. By sending ID data indicating the type and location of the sensor as soon as it is connected to the existing wired / wireless communication network, and sending out the detected output data in parallel, additional work is not required after installation. It is an object of the present invention to provide a network sensor for wireless communication.

In order to achieve the above object, the present invention provides a network sensor for wired / wireless communication, comprising: a sensor unit for performing sensing; A signal amplifier for amplifying the detection signal of the sensor unit; And an ID storage unit for storing the ID data so that ID data indicating the type and location of the sensor unit can be added to the data transmitted from the signal amplifier. do.

The above objects, features and advantages will become more apparent from the following detailed description taken in conjunction with the accompanying drawings. First of all, in adding reference numerals to the components of each drawing, it should be noted that the same components have the same number as much as possible even if displayed on different drawings. Hereinafter, exemplary embodiments of the present invention will be described in detail with reference to the accompanying drawings.

Hereinafter, in the description of the present invention, wired communication will be described as an example of power line communication, and wireless communication will be described as an example of radio frequency (hereinafter simply referred to as 'RF') communication. would. However, this is for convenience of description and is not necessarily limited thereto.

1 is a structural diagram of a network sensor for wired / wireless communication according to the present invention, and FIG. 2 is a structural diagram of a network sensor for wired / wireless communication according to the present invention. The difference between the embodiments is the case where the communication unit 150 for wired / wireless communication is present outside and interlocked with the outside (first embodiment) and inside the case (second embodiment). Therefore, since the component is the same, it demonstrates uniformly below.

As shown in FIG. 1, the network sensor of the present invention includes a sensor driving unit 110, a sensor unit 120, a signal amplifier 130, and an ID storage unit 140, and the communication unit 150. ) Can be linked.

According to the present invention, by using the drive voltage and the output signal system previously set for driving the sensor and enabling communication using a power line, it is possible to supply an operating system that does not burden existing equipment. In other words, it is possible to perform a series of operations including sensor power supply, physical quantity detection, signal processing, A / D conversion, and data transmission only by connecting power to the sensor and the interface unit.

The sensor driver 110 of the network sensor of the present invention receives power from the outside for the overall operation of the sensor, and a voltage to be appropriately supplied to each component (for example, 5V to the sensor unit 120 and the signal). The amplifier 130 is responsible for driving a 3.3V).

The sensor unit 120 may be driven at a standard voltage (limited to 5V or 3.3V in the present invention), and is responsible for any sensing function such as temperature / humidity and illuminance.

The signal amplification unit 130 sets an analog output, which is a result detected by the sensor unit 120, as a variation amount of a voltage of 0 to 3.3 V, and sets an output voltage generated by the sensor unit 120 to a signal having an appropriate magnitude. It is responsible for the amplification function, and may be a gain amplifier.

3 is a detailed structural diagram of an embodiment of the signal amplifier of FIGS. 1 and 2.

In the present invention, a programmable gain amplifier having a function of converting a value output from the sensor unit 120 to an appropriate magnitude and adjusting a gain to an appropriate magnitude as needed; 'PGA' is used and the upper control module can adjust the gain of the output signal as needed.

As shown in the figure, the signal amplifier 130 of the present invention is composed of three elements. However, this is for convenience of description and the present invention is not limited thereto. For the purposes of the present description, it is assumed that three modules, PGA208, PGA207 and PGA204, are used.

In the figure, the IN + and IN- terminals are responsible for supplying the analog output of the sensor unit 120. At this time, a gain can be connected to one of the PGA208 and PGA207 which is easy to set the gain. That is, PGA208 can be connected to PGA208 when 1,2,4,8 times primary amplification is required, and PGA207 when 1,2,5,10 times primary amplification is required. The primary amplification factor is determined by the A ₀ and A ₁ terminals. At this time, the gain can be adjusted by setting the condition that A ₀ and A ₁ become 1 or 0 (Hi, Low) as an external jump terminal. .

The A ₂ and A ₃ terminals on the secondary side can also be set for gain. At this time, if the primary side is 2 times, the secondary side is 10 times, 20 times amplification is performed, and if the primary side is 5 times and the secondary side is 100 times, amplification of 500 times is made.

As a result, in the present invention, the gain may be set in consideration of the magnitude and the range of the voltage signal at the output of the sensor unit 120.

 On the other hand, the ID storage unit 140 is responsible for storing the ID data indicating the type and location of the sensor unit 120, the ID data of the sensor to the data transmitted from the signal amplifier 120 It is responsible for the function of transmitting to the communication unit 150 by the addition. In this case, the ID storage unit 140 may be a serial read-only-memory (ROM).

The communication unit 150 includes an analog / digital converter (hereinafter, simply referred to as 'A / D') 151, a power line communicator 152, and an RF communicator 153.

The A / D 151 is responsible for converting an output signal of the voltage received from the signal amplifier 130 into a digital value. In the embodiment of the present invention, the signal amplifier 130 uses the MC3202 A / D to convert the voltage signal into a digital signal. It has 12-bit resolution and uses the SPI protocol, which enables a 4-wire interface. Therefore, a simpler configuration is possible because the data line for signal transmission uses a serial interface. This method is difficult in high-speed data transmission, but in the field of smart home and smart building, there is no sudden change of environment, so it can be designed to have appropriate response characteristics. have. However, this is listed as an example of the A / D 151, but is not limited thereto.

The power line communicator 152 is responsible for transmitting and receiving data received from the A / D 151 with an upper control module (not shown) through a power line, and the RF communicator 153 is the A The data received from the / D 151 is responsible for transmitting and receiving data to and from a higher control module (not shown) using wireless communication. In the present invention, the wired / wireless communication is limited to the power line communication and the RF communication, but is not limited thereto.

In the present invention, in order to be able to recognize the type of sensor and the sensor output data (sensor ID) in the data communication process, ASCII in the transmission and reception protocol setting head portion of the data output from the signal amplifier 130 of the present invention And integer / hexadecimal (INT / HEX) to set two bytes. Table 1 shows the communication protocol structure between the network sensor for the wired / wireless communication and the upper control module of the present invention.

That is, the data output from the network sensor of the present invention can be seen that the "STX (1 byte) + Sensor Type (1 byte) + Body (4 byte)" form.

The present invention described above is not limited to the above-described embodiments and the accompanying drawings, and various substitutions, modifications, and changes can be made without departing from the technical spirit of the present invention. It will be apparent to those of ordinary skill in Esau.

As described above, the present invention transmits ID data indicating the type and location of the sensor as soon as it is connected to an existing wired / wireless communication network, by using an ID storage unit containing ID data indicating the type and location of the sensor. By sending the detected output data in parallel, the sensor network used in the smart home and smart building can be effectively constructed, and the maintenance and additional installation of the sensor can be smoothly performed. It is effective.

In addition, the present invention is configured to be applied directly to power line communication and RF communication, so that the use process of the sensor can be made more easily, additional problems such as power supply, communication line installation, which is a problem in the existing method It is effective to solve the problem.

Claims (7)

In the network sensor for wired / wireless communication, A sensor unit for performing detection; A signal amplifier for amplifying the detection signal of the sensor unit; And An ID storage unit for storing the ID data so that ID (ID) data indicating the type and location of the sensor unit can be added to the data transmitted from the signal amplifier ; And Receiving a signal from the signal amplifier and the ID storage unit, and comprises a communication unit for transmitting it in a wired and wireless communication method, The communication unit, A converter for converting an output signal of the voltage received from the signal amplifier into digital; A wired communicator for transmitting / receiving data received from the converter and the ID storage unit through a wire with an upper control module; And A wireless communicator for wirelessly transmitting and receiving data received from the converter and the ID storage unit to a higher control module; And Including, The wired communicator and the wireless communicator, The network sensor for wired / wireless communication, characterized by setting and transmitting 2 bytes of ID data in a transmission / reception protocol setting head portion of data received by the signal amplifier . delete delete delete The method of claim 1, Sensor driver for supplying power suitable for the sensor unit, the signal amplifier and the communication unit by receiving power from the outside Wired / wireless communication network sensor further comprising a. The method of claim 1, The signal amplifier, Gain amplifiers Network sensor for wired / wireless communication, characterized in that. The method of claim 1, The ID storage unit, With serial read-only-memory (ROM) Network sensor for wired / wireless communication, characterized in that.

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