KR20070011639A - Rf controller for electric peak power - Google Patents

Abstract

An apparatus of wirelessly controlling peak electric power is provided to effectively control the peak electric power from the remote place without additionally installing a wire communication network or a remote-control line in a building or monitoring the electric power in real time. An apparatus of wirelessly controlling peak electric power includes at least one wireless transmission control module(100) comprising a microcomputer(102), which calculates a peak electric power set value set by a user through a key pad(101) and a load electric power value measured by a digital power measuring unit(10) and then outputs the result, and a wireless transmission module(103) having plural input ports(103d) transmitting the output of the microcomputer by wireless; and at least one load control module having a wireless receiving module receiving and analyzing a wireless signal and having plural data output ports outputting the data, an amplifying unit amplifying the data output of the wireless receiving module, and a relay operated by the data output amplified by the amplifying unit to control a remote-control switch supplying/cutting off the electric power to a load.

Description

RF controller for electric peak power

1 is a block diagram of a wireless transmission control module of a wireless control device according to the present invention.

2 is a block diagram of a load control module of a wireless control device according to the present invention.

3 is an operation flowchart of the wireless transmission control module shown in FIG.

4 is an operation flowchart of the load control module shown in FIG.

<Explanation of symbols for main parts of drawing>

10: digital power measurement means 20: remote control switch 21: load

100: wireless transmission control module 101: keypad 102: microcomputer

102a: display unit 102b: microcomputer output port 102c: osc

103: wireless transmission module 103a: encoder section 103b: RF section

103c: address input port 103d: data input port 104: dip switch

105: power supply unit 200: load control module 201: no new module

201a: RF section 201b: decoder section 201c: address input port

201d: Data output port 202: Amplifier 203: Relay

204: Timer 205: Display 206: Dip switch

207: power supply

The present invention relates to a wireless power control device of the maximum power, and more particularly to a wireless power control device of the maximum power that can be automatically controlled wirelessly from a remote location so as not to exceed the maximum power value of the customer.

In general, when looking at the monthly usage of electricity used in a receiving place such as a building, the maximum power generated by seasonal load demand concentrated in a particular season is much higher than the average monthly electricity consumption, so that both the customer and the electricity supplier control it properly. There is a need to do this.

However, conventionally, a manual control method using a control line or a remote monitoring control method through a wired or wireless Internet is used to control the maximum power. However, in order to control such a method, it is difficult to control the maximum power value not to exceed the maximum value. Difficult and the problem of having to establish a remote control line or a wired communication network in an existing building, along with the problem of constantly monitoring.

Therefore, the present invention was invented to solve the above problems, and without the establishment of a wired communication network or remote control line in the building and wireless control at a remote location so as not to exceed the maximum power value set by the user without constant monitoring. Its purpose is to provide a wireless control device with the maximum power possible.

In order to achieve the above object, the present invention calculates the maximum power setting value set by the user through the keypad and the load power value measured from the digital power measuring means and outputs the result of the microcomputer and the output of the microcomputer At least one radio transmission control module including a radio transmission module having a plurality of data input ports for radio transmission; It is operated by a wireless receiving module having a plurality of data output ports for receiving and interpreting a radio signal and outputting data, an amplifying unit for amplifying the data output of the wireless receiving module, and amplified data output of the amplifying unit, The power is characterized in that it comprises at least one load control module including a relay for controlling the remote control switch to supply / cut off.

In addition, the load control module is characterized in that it further comprises a timer for counting a predetermined time to allow the user to adjust the load control time from the outside according to the use environment of the load.

Hereinafter, an embodiment of the present invention will be described in detail with reference to the drawings.

Among the terms used in the present invention, the microcomputer is an abbreviation of a micro controller, and the address is used as an address for convenience.

The wireless control apparatus of maximum power according to the present invention largely calculates the maximum power set value and the load power value set by the user with a wireless computer, and the wireless transmission control module for receiving and interpreting the wireless signal and the wireless transmission control module for wirelessly transmitting the result. It consists of a load control module that controls a remote control switch that supplies / blocks power to the load by the output of the module.

1 is a block diagram showing a detailed configuration of a wireless transmission control module, wherein the microcomputer 102 of the wireless transmission control module 100 is configured from the maximum power setting value input by the user to the keypad 101 and the digital power limiting means 10. If the load power value is calculated every predetermined time and the load power value continuously exceeds the maximum power setting value for a specific time, a high output is output for several seconds to the reserved output port of the output port 102b of the microcomputer 102. Cause.

In the case of continuously exceeding for a certain time, generating an output gives flexibility to temporary load fluctuations such as starting current of the load. The setting of a specific time is implemented according to the intention of the implementer, but it is recommended within a few minutes.

The wireless transmission module 103 receives an output of High from the output port 102b of the microcomputer 102 to the data input port 103d and performs wireless transmission as follows.

The wireless transmission module 103 receives an output for each input port and transmits the output port 102b and the data input port 103d of the microcomputer 102 in a one-to-one correspondence, and transmits the data input port. When 103d becomes High, transmission starts. When low, 103d stops transmission. That is, only when the microcomputer 102 generates an output. In addition, the encoder unit 103a encodes an input port value and an address value, which are values that are provided to distinguish the plurality of data input ports 103d by input ports, and then packetizes them and transmits them through the RF unit 102b.

The address value is a value set by the dip switch 104 in the address input port 103c.

The display unit 102a displays the maximum power setting value and the load power value on the LCD, and otherwise implements a display device that displays the power supply indication, the transmission status indication, and the like with LEDs. It is implemented at the intention of the practitioner.

The power supply unit 105 may be used as a driving power of the wireless transmission control module 100 by properly processing the AC power applied from the outside by the operator or may be implemented as a battery.

The OSC 102c is a basic element of the microcomputer, and a description thereof is omitted.

The digital power measuring means 10 measures a load power value and automatically inputs it to the microcomputer 102 according to a set data update period. However, an analog power value may be directly input to convert the digital power into a digital value within the microcomputer. Do.

In addition, the number of output ports 102b of the microcomputer 102 is generally implemented corresponding to the number of loads to be controlled.

2 is a block diagram illustrating a detailed configuration of the load control module. When the wireless receiving module 201 of the load control module 200 receives a radio signal from the RF unit 201a, the decoder unit 201b interprets the radio signal. If the address value of the input wireless signal matches the address value of the wireless receiving module 201, and the format of the input port value matches the data input / output format stored in the decoder 201b, the corresponding data output port ( 201d) outputs data.

Here, the data input and output format is a format in which data input and output are synchronized when the wireless transmission module 103 and the wireless reception module 201 are transmitted and received with the same port number.

Each port state of the data output port 201d becomes a high state when outputting data and is inverted to a low state when output is stopped. The data output outputs data when a radio signal of the radio transmission module 103 is received. It's time within seconds.

The amplifier 202 amplifies the output signal of the data output port 201d to obtain driving power of the relay 203. In one embodiment, the amplifier 202 applies the output of the data output port 201d to the base of the NPN transistor. By connecting the emitter and the collector to drive the relay by the self-holding circuit, or by inspecting the data output port 201d with a separate microcomputer and outputting high to a specific output port of the separate microcomputer. To drive a relay with a self-holding circuit.

An example of the amplifying unit 202 has been described in detail with reference to an embodiment, and a specific circuit configuration for driving the relay 203 using the output of the data output port 201d as a trigger signal is described. Those skilled in the art may easily implement the detailed description thereof.

The relay 203 controls the remote control switch 20 for supplying / blocking power to the load 21 to supply / disconnect power to the load 21, and is combined with a timer 204 to return after operation for a predetermined time. do. In addition, the relay 203 is implemented when the load power value exceeds the maximum power setting value to implement the form to cut off the power of the load 21, the number of the data output port (201d) is usually the number of the control target load Is implemented correspondingly.

The timer 204 is for interrupting the power supply of the load 21 for a set time by setting the operation time of the relay 203. The time setting of the timer 204 is adjusted by the user in consideration of the usage environment of the load. Possible external attachment is recommended.

The display unit 205 displays the control state of the load 21 with LEDs in synchronism with the relay 203. It is also possible to implement a dot or blink form in a reverse form according to the intention of the practitioner.

The dip switch 206 inputs the address value to the address input port 201c in accordance with the address value of the wireless transmission module 103.

The power supply unit 207 may be used as a driving power of the load control module 200 by properly processing the AC power applied from the outside by the operator or may be implemented as a battery.

Next will be described in detail with reference to the accompanying drawings an operation method for a wireless power control device of the maximum power according to the present invention configured as described above.

3 is a diagram illustrating an operation flow of the wireless transmission control module. When driving power is supplied to the wireless transmission control module 100, the microcomputer 102 waits to read the K value input to the keypad 101 (ST101). K value is the maximum power setting value input by the keypad (101).

The microcomputer 102 determines whether there is an input of the K value (ST102), if there is an input of the K value, displays the K value on the storage and display unit 102a at a specific address (ST103), and determines whether there is an input of the D value. (ST104).

The D value is a load power value measured by the digital power measuring means 10, and is described with an update period of measured data as 1 second for convenience.

When the D value is input, the D value is displayed on the display unit 102a (ST105), and the D value and the K value are calculated (ST106). If the D value is larger than the K value, 1 is increased to the variable M0 (ST107) and then M0 If the value is greater than 59 (ST108), if the value of M0 is 60, high is output to the reserved output port of the microcomputer 102, for example, the P0 output port, and the value of M0 is cleared (ST109).

In the above example, the D value is calculated with the K value every second, and the reserved output of the microcomputer 102 is continuously output if the D value is larger than the K value for 1 minute (the specific time described above with reference to FIG. 1). To output to the port. If the D value is not greater than the K value while counting one minute, the value of the variable M0 is cleared (ST106a).

The P0 output port and the variable M0 refer to an example of an output port initially output among the output ports of the microcomputer 102 and a variable corresponding thereto.

For example, assuming that the load control output port of the microcomputer 102 is used from P0 to Pn, the first output port number is P0 and the next output port number is output in the order of output port sequential number. It is assumed that the port number is Pn and its corresponding variable is M0 to Mn.

In addition, in the following, output of P0 output port and output of Pn output port have already finished output to output ports P1 to P (n-1), which are output ports between P0 and Pn, and Pn, the last output port. It means to output to output port. The process to generate output is the same as that to output to P0 output port.

The microcomputer 102 that has already outputted the output ports P1 to P (n-1) as described above after outputting high to the P0 output port continues to receive the D value (ST110) and displays the D value. Display (102a) (ST111), calculate the D value and the K value (ST112), if the D value is larger than the K value, increase 1 to the variable Mn (ST113), and judge whether the value of Mn is larger than 59 (ST114). When Mn is 60, the Mn value is cleared and a predetermined time high is output to the reserved output port of the microcomputer 102, for example, the Pn output port (ST115). If the D value is not greater than the K value while counting one minute, the value of the variable Mn is cleared (ST112a). In this way, the microcomputer 102 outputs a sequence of output port sequential numbers, outputs high to the last Pn output port, and then repeatedly moves to a position where the first D value is input.

Outputting the output of the microcomputer 102 in order of output port order is for controlling the control target load sequentially. For example, if eight cooling loads are controlled, the microcomputer sequentially outputs control signals such that the eight cooling loads do not exceed the maximum power set by the user for a predetermined time.

The outputs ST109 and ST115 generated when the D value is continuously greater than the K value for a predetermined time supply high to the data input port 103d of the wireless transmission module 103 and are in the standby standby state ST116. The wireless transmission module 103 determines whether the data input port 103d is high (ST117). If high is input, the wireless transmission module 103 encodes the input port value and the address value and transmits the packetized signal (ST118). The transmission ST118 determines whether the data input port 103d is switched from high to low (ST119) and continues to transmit (ST120), or stops transmission (ST121) and enters the transmission standby mode (ST116).

4 is a diagram illustrating an operation flow of the load control module. When driving power is supplied to the load control module 200, the wireless receiving module 201 enters a reception standby state (ST201).

When the radio signal is received (ST202), the received radio signal is interpreted by the decoder 201b to determine whether the addresses match (ST203), and when it matches, the data is stored (ST204).

It is determined whether the data included in the received radio signal matches the input / output data format stored in the decoder 201b (ST205). If the data is identical, the data is output to the corresponding data output port 201d by the input / output data format. (ST206). If the input and output data types do not match, the data is cleared (ST205a) and returns to the reception standby state.

The data output (ST206) is amplified by the amplifier (ST207) to start the relay and the timer (ST208).

The operation of the relay and the timer ST208 controls the remote control switch ST20 for supplying / blocking power to the load ST121 to cut off the power supplied to the load ST21 for a predetermined time.

If an error or reception is interrupted in the received radio signal data during the data output (ST206) to the corresponding data output port (ST210), the data output to the corresponding data output port is stopped (ST211) and returns to the reception standby state (ST201).

The display additional movement ST209 displays the control state of the load ST21 with LEDs in synchronization with the relay.

As described above, according to the present invention, the wired communication network or the remote control line should be newly established in an existing building, and the problem of constantly monitoring the maximum power value of the customer can be automatically controlled wirelessly from a remote place so as not to exceed the set value set by the user. There is an energy saving effect according to the implementation of the present invention with the advantage that it can effectively control the maximum power wirelessly without.

Claims (2)

A microcomputer that calculates the maximum power setting value set by the user and the load power value measured by the digital power measuring means through the keypad and outputs the result value, and a wireless data input port that wirelessly transmits the output of the microcomputer. At least one wireless transmission control module including a transmission module; It is operated by a wireless receiving module having a plurality of data output ports for receiving and interpreting a radio signal and outputting data, an amplifying unit for amplifying the data output of the wireless receiving module, and amplified data output of the amplifying unit, And at least one load control module including a relay for controlling a remote control switch to supply / block power. The load control module of claim 1, further comprising: And a timer for counting a predetermined time for allowing a user to adjust the load control time from the outside according to the use environment of the load.

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