JP2016145788A - Power consumption management system for various devices - Google Patents

Abstract

PROBLEM TO BE SOLVED: To provide a power consumption management system at a low price with regard to a manufacturing cost and a maintenance cost, unlikely to be influenced by noises, and capable of integrally managing the power consumption states of various devices while stably functioning, and acquiring a present status or obtaining an indicator for a required operation control.SOLUTION: A power consumption management system is configured to: measure consumed electrical current of various devices; digitally convert data on the measured current by an A/D converter; transmit the obtained digital data by each piece of terminal radio communication equipment; automatically input the received data to a personal computer; and display the power consumption of various devices in comparison with previously inputted power data, so as to enable a present status of power consumption to be managed visually.SELECTED DRAWING: Figure 1

Description

  The present invention relates to a power usage management system in which usage states of various devices that use power can be grasped, and thus a necessary countermeasure can be taken by managing the current power usage.

  When power is consumed by individual devices, the current state of power usage for business purposes such as individual residences or micro-enterprises can be ascertained individually by individual devices such as air conditioners and machine tools. Yes. Moreover, instead of electric power, for example, the temperature management of a greenhouse is detected and managed individually by a thermometer installed in the house, and a burner or the like is operated based on the detection result. Furthermore, the same applies to control of lighting equipment that requires adjustment of wavelength and illuminance, such as greenhouse cultivation.

  In order to supervise the management of these various devices by the central control or the management department, the wiring, etc., requires a great deal of cost. There is also. In any case, there is currently no collective management system for various devices.

Therefore, the present inventor has focused on a weak wireless communication system capable of acquiring technical certification.
The current state of these systems is used for early hobby, for example, radio-controlled communications, and now for unmanned helicopters for pesticide spraying and helicopters for aerial photography. In addition, for example, wireless communication devices are arranged at two locations on one large floor, and the same wireless device is mounted on a specific device existing on the floor. There is also an apparatus for measuring the position and converting it into a distance to specify the position of the specific device.

The above-described device is controlled using an analog control system that is standard equipment on the radio, and is not precise analog data control, as can be inferred from its usage. The analog control function of such a device is not suitable for precise temperature measurement and precise power measurement of mechanical equipment and lighting equipment.
Therefore, without using the analog data processing function of the radio device, the measurement unit of the current individual power-using machine device and lighting device power management system uses a commercially available measuring device and stores the data. The wireless device is used for transmission and management to a wireless receiver on the integrated management side. In such a system, a simple combination of commercially available products is not suitable as a unit, it is also susceptible to noise, the cost of countermeasures is high, the power consumption of the device is large, and the battery life is also shortened. So you have to rely on external power supply. Therefore, the total cost is increased and the selling price is naturally increased. In addition, the installation location is also restricted, and further, it is affected by a power failure, resulting in a product that includes factors that hinder its spread.

The following technologies have been proposed as such conventional management systems for various devices.
JP2014-120108A JP2011-253498A

Problems to be solved by the invention

The feeble wireless communication system that can acquire the technical certification focused on by the present inventor is inexpensive, and is small and light, depending on the communication distance and the surrounding environment, but can be 3 km, and the power consumption is 10 mw. If a high-capacity battery is used, the battery can be used for at least 5 years without battery replacement.
Therefore, there is a problem of how to effectively use this system to achieve the required purpose. First, detection or measurement is performed in consideration of the problem of handling analog data of the prior art. It is considered preferable to digitally convert the data thus obtained and then perform wireless communication.

  In view of such problems, the present invention is low in manufacturing cost and maintenance cost, is not easily affected by noise, can function stably, and collectively manages the power usage status of various devices to grasp the current situation or An object of the present invention is to provide a management system capable of obtaining an index for required operation control.

Means for solving the problem

In order to solve the above problems, the system according to the present invention is a power management system for various devices that grasps the power usage state of various devices that use power and manages the various devices based on this. ,
Connect at least a current measuring element to the various devices to measure the current used,
The measured current data is digitally converted by an A / D converter,
The obtained digital data is transmitted by a low-power individual terminal wireless communication device that has received technical certification,
Receiving the data transmission by a management wireless communication device;
The received data is automatically entered into a personal computer,
The present invention is characterized in that power consumption of various devices is displayed in comparison with power data input in advance, and the required countermeasure can be achieved by enabling visual management of the current state of power consumption.

Effect of the invention

According to the present invention, the weak radio system that has undergone technical certification is low in manufacturing cost and maintenance cost, and since it uses measurement data that has been digitally converted, it is not susceptible to noise and can function stably. Because it is weak wireless, it consumes less power, and even a commercially available battery can be activated for a long period of time. It can check the collective management by sending and receiving data of various devices at a distance of about several hundred meters. By comparing the input data with the input data, the current power usage status of various devices can be ascertained collectively, or by obtaining an index for the required operation control, the necessary operation control can be performed.
Other advantages of the present invention will become apparent from the following description of the preferred embodiment.

In implementing the present invention, it is preferable to employ the following means.
First, a temperature measuring element is connected to a required device of the various devices, the measured temperature data is digitally converted by an A / D converter, the data is transmitted by the terminal wireless communication device, and similarly to a personal computer. Thus, it is preferable that the required countermeasure can be achieved by enabling visual management in comparison with temperature data input in advance.
In this way, according to wireless transmission of data after digital conversion, the influence of noise hardly occurs (the influence of disturbance can be prevented), and stable and accurate data can be transmitted and received, thereby achieving the intended purpose. easy. Moreover, by displaying on a personal computer, it is possible to grasp the current state at a glance, and it is easy to take necessary countermeasures.
In such an embodiment, the detection of the temperature sensor is used instead of the detection of the electric energy, but both can be treated equally from the viewpoint of management of various devices.

Further, it is preferable that an alarm device is connected to the personal computer, and the alarm device is activated when the measurement data deviates from the data by comparing the pre-input data and the measurement data. .
If comprised in this way, the present condition or abnormality can be recognized not only visually but also by hearing, and the accuracy as a management system can be raised.

Further, it is preferable that data transmission is performed by setting a time lag of several to several tens of microseconds from the terminal wireless device of the various devices to the management wireless communication device.
By taking these measures, it is possible to efficiently transmit data from a large number of various devices to a single management radio, which is very effective for managing the data of various devices with a single personal computer. .

The conceptual diagram which shows an example of the management system concerning this invention. The conceptual diagram which shows the other example of the management system concerning this invention.

A preferred embodiment of a power management system for various devices according to the present invention will be described in detail below with reference to the drawings.
FIG. 1 shows a first embodiment, which uses the following means so that the operating status of various types of devices can be managed by grasping the power used.
That is, an AC current sensor 5 as a current measuring element is installed in various devices, here, the power supply line of the illumination system 1, and the data detected and measured here is converted into an A / D converter (A / D converter microcomputer) 2. And the digital signal is transmitted using the terminal wireless communication device 3-1. The wireless device 3-1 and the A / D converter 2 are configured to be operated by a laid battery 4 (operable for about 5 years).

  The wireless device 3-1 is a weak wireless device that has acquired technical certification and has an output of about 10 mw and an effective range of about 3 km. The frequency band here is 2.4 GHz (currently 16 channels are allowed). This wireless device 3 is set so that data transmission is performed after setting the terminal wireless communication device 3-2 or later of another device and a lime lag of 20 microseconds. This time lag may be set to an appropriate time difference of several tens of microseconds to several microseconds.

  As other equipment, the air conditioning system 6 is planned here, and the same alternating current sensor 5 is installed in the power supply line linked to the outdoor unit 13 and the indoor unit 14 provided with the compressor, and the operation status is determined. The data is detected and measured by a sensor, and the data is automatically input to the same A / D converter 2, and then the data is input to the terminal wireless communication device 3-2. It is configured to transmit with a time lag of.

  Further, as another device, a precision machine system (machine tool or the like) 7 is planned here, and a thermocouple temperature sensor 8 is laid there. In other words, it is intended to grasp the current state by measuring the temperature of the abnormality of the precision mechanical system. Similarly, the measurement data of the thermocouple temperature sensor 8 is automatically input to the A / D converter 2, and the obtained digital data is input to the terminal wireless communication device 3-3. -1, 3-2 and data transmission is performed with a predetermined time lag.

  As another device, for example, an elevator system 9 is assumed, and a current sensor 5 is installed on the control line to grasp the operating state. The data is input to the same A / D converter 2. After that, the terminal wireless communication device 3-4 is configured to transmit with the terminal wireless communication device at a predetermined time lag.

  In this embodiment, the radio waves of the terminal wireless communication devices 3-1 to 3-4 are transmitted to the main management wireless communication device 11 via the relay device 10. This is a countermeasure for avoiding the case where there is an obstacle causing radio wave interference between the laying place of the various devices described above and the management wireless communication device 11. If there is no problem, such a repeater 10 may be omitted. Here, the repeater 10 uses an alternating current power supply, and takes in and operates the direct current power supply via the direct current converter 10A (AC / DC converter).

Next, the management wireless communication device 11 is connected to the personal computer 12 and its display is used. The personal computer 12 is preliminarily input with standard power consumption data (power consumption during normal operation: current) of the various devices described above, and is automatically compared with the transmitted data. When different, it is set so that the display is obvious at a glance. In addition to such a display, if it differs from the standard data within a predetermined range, an alarm may be activated to alert the user to notify the abnormality of various devices.
In any case, by recognizing the abnormality, it becomes possible to take necessary countermeasures.

The second embodiment will be described with reference to FIG. 2. Basically, there is no difference from the first embodiment, but here, an illumination system, a machine tool system, and an air conditioning system are planned as various devices. Yes.
First, the illumination system is supplied from a 100V power supply line, and the illumination systems 1-1 to 1-1N are provided in each floor or each compartment. In the figure, NFB indicates a relay breaker, and the abbreviation indicates a product name of a specific device, but is referred to for convenience. Therefore, a current sensor 5 is laid for each system 1-1. Thereby, the abnormality for every system | strain can be detected. Each of these current sensors 5 is input to the A / D converter 2, and the obtained data is automatically input and transmitted to the installed terminal wireless communication devices 3-1, 3-2. .

  The machine tool system uses a three-phase alternating current as a power source, and a plurality of machine tools such as an NC lathe are laid. And it connects to a supply line via NFB, but the current sensor 5 is laid individually there. The detection measurement result of the sensor 5 is input to the A / D converter 2, and then input to the terminal wireless communication devices 3-31 and 3-3N to transmit data. Such a terminal wireless communication device is set such that each communication device is transmitted with a predetermined time difference and time lag. As mentioned in the first embodiment, it is preferable to set a difference of several tens of microseconds.

  The air conditioning system is similarly supplied from a three-phase AC power line. Similarly, a plurality of air conditioners are connected via NFB, but current sensors 5 for the individual air conditioners 15 are installed. Then, the A / D converter 2 and the terminal wireless communication devices 3-41 and 3-4N are installed in these current sensors 5, and the converted data is transmitted. Of course, such terminal wireless communication devices 3-41 and 3-4N are set with a time lag, and are sequentially transmitted.

  The above-described terminal wireless communication devices 3-1, 3-1 N and 3-2, 3-2 N and 3-4 and 3-4 N are received by the management wireless communication device 11 and input to the laid personal computer 12, It will be displayed on the display. As in the first embodiment, the standard power consumption data of each device is input in advance, and is displayed in comparison with the transmitted data, or at the same time, an alarm can be issued due to abnormality detection. Is set.

  Since the present invention is a system that can individually manage the operation status of various devices and detect anomalies, it can be applied in various industries from heavy machinery industry to agricultural fields such as house cultivation. Is wide.

1: Illumination system 2: A / D converter 3-1: Terminal wireless communication device 3-2: Terminal wireless communication device 3-3: Terminal wireless communication device 4: Battery 5: Current sensor 11: Wireless communication device for management 12: personal computer

Claims (4)

It is a power usage management system for various devices that grasps the power usage status of various devices that use power and manages various devices based on this.
Connect at least a current measuring element to the various devices to measure the current used,
The measured current data is digitally converted by an A / D converter,
The obtained digital data is transmitted by a low-power individual terminal wireless communication device that has received technical certification,
Receiving the data transmission by a management wireless communication device;
The received data is automatically entered into a personal computer,
A power usage management system for various devices, which displays the power usage of various devices in comparison with power data input in advance, and enables the necessary measures to be taken by enabling visual management of the current state of power usage.   A temperature measuring element is connected to a required device of the various devices, the measured temperature data is digitally converted by an A / D converter, the data is transmitted by the terminal wireless communication device, and similarly in a personal computer, 2. The power usage management system for various devices according to claim 1, wherein a required countermeasure can be achieved by enabling visual management in comparison with temperature data input in advance.   3. An alarm device is connected to the personal computer, and the alarm device is activated when measurement data deviates from the data by comparing preliminarily input data and measurement data. Power management system for various devices described in 1.     4. The data transmission is performed by setting a time lag of several to several tens of microseconds from the terminal wireless device of the various devices to the management wireless communication device. Power management system for various devices described in 1.

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