JPS5827212A - Power source controlling system for electronic controlling device - Google Patents

Abstract

PURPOSE:To reduce the capacity of a power source and reduce average power consumption by supplying the power source in time division in accordance with function to unit groups that perform functional operations in time division. CONSTITUTION:Inputs IN1, IN2,...INn are given to functional units A1, 12,...1n which are installed in an elctronic controlling device and perform respective functional operations in time division, and expected operation outputs OUT1, OUT2,...OUTn are obtained. Voltage is supplied from a DC power source 2 to power source terminals of each functional unit 11, 12,...1n through controlling switches 31,...3n. On the other hand, a function request signal F is given from a central controlling section 6 to a power source controlling section 4 through a transmitting section 7, and the power source controlling section 4 reads a functional unit for which the functional operation is required. Controlling switches 31...3n of the corresponding functional unit are selected properly from this reading and the application control is performed. By this way, the capacity of DC power source is lowered and the power consumption is reduced.

Description

[Detailed description of the invention] The present invention relates to a power supply control method for an electronic control device.

In remote power system monitoring and control systems, computers are often installed at the central part due to the increasing scale and complexity of processing operations, and the system configuration is based on functional units that subdivide the functions necessary for the system. The desired comprehensive function is realized by unitizing and combining these units. A microprocessor and other digital processing circuits are installed in each functional unit.

In electronic control equipment equipped with a group of electronic control function units such as these remote monitoring and control systems, the power supply equipment often requires multiple voltage and large capacity power supplies, and the X source is large and consumes a lot of power. VC people. In particular, digitalized electronic control equipment, such as digital relays using microcomputers instead of electromagnetic relays and transistor relays, is functionally superior, but consumes a lot of power and requires a large power supply.

The present invention provides a ridge control device having a large number of functional units, in which a group of adjacent units is controlled in a time-division manner according to the function that also requires power supply, thereby reducing the power supply capacity. It is an object of the present invention to provide a power supply control method that can reduce and reduce average Sk power consumption.

FIG. 1 is a main circuit diagram showing an embodiment of the present invention. Functional units) 1tzlz*..., In are installed in an electronic control device so that one or more units perform the desired functional operation in a time-sharing manner, and each unit is connected to other functions externally or within the electronic control device. Inputs INl, IN2 from units etc.・
..., INn is given and the expected operating output is 0UTI,
0UT2, ..., 0UTnf is given externally or within the own device. For example, functional units 11゜12,...1
n is a teleconverter unit installed in a control center device in a remote monitoring and control system, and is used to process data for sending and receiving display, measurement, and control signals between a large number of controlled center devices and the central control device 9. Equipped with functions.

A power supply device consisting of 2 to 5 units is provided as a power supply in the electronic control device that can operate such a group of functional units.

The DC power supply 2 is supplied with power from an AC power supply AC such as a commercial power supply, and outputs the voltage and current necessary for the functional unit groups 11 to 1n, and this output is supplied to the control side 1 switch 31.
~3n allows for selective supply control to each functional unit. Note that one switch 31 to 3n is shown as a representative for each functional unit 11 to 1n, but if a functional unit requires multiple power supplies, a plurality of switches 31 to 3n provided in the DC power supply 2 may be used. The number of switches to be individually introduced from the L monument to the functional unit side is prepared. In addition, if the functional units 11 to 1n require different voltages and capacities in ms, the DC power supply 2 is provided with a power supply whose voltage type and capacity are determined according to their greatest common divisors.

The i-source control unit 4 determines the functional unit that requires functional operation from the functional request signal F given from an external or central control unit in the electronic control device, and controls the corresponding functional unit from this output. Switches 31 to 3n are appropriately selected to control their closing.

Control switches 31 to 3 by reading this function request signal F
The required control speed for the control of n is determined based on the control processing speed required of the electronic control device, etc., and the control switches 31 to 3n are relay contacts or, if necessary, power switches with high-speed and high-frequency opening/closing capabilities. Non-contact switches such as transistors and Cyrisk are used.

The DC power supply 2 has a capacity that is the maximum value of the power consumption of the functional units 11 to 1n by the power source control unit 4 having such a time-sharing power supply selection control function.
The capacity of the DC power supply 2 can be reduced. The source control unit 4 is directly for that tBIJ,
A full power supply is required, and the DC power supply 5 is supplied with AC power from a current power supply AC or directly from the DC power supply 2 to ensure its functional operation.

As mentioned above, the 'w/L source control section 4 controls each functional unit 1.
1~1nK:i! Since the power supply is selectively connected to switch its functional operation, when each functional unit (I~1n) is placed in its non-functional state, the control switches 31~3n are used.
In electronic control devices that require high reliability, there are concerns about whether each function will be performed when required. Therefore, the power supply control section 4 has a function of automatically inspecting each functional unit at regular intervals.

Automatic inspection by the power supply control unit 4 begins with the control switch 31.
At the same time, an automatic monitoring command Ofk is given to the functional unit 11, and an anthropomorphic power is applied or generated to the input section of the functional unit 1+, and its output OUT is monitored on the power supply control section 4 side. Check for functional abnormalities. Next, the control switch 11 is controlled to open, and at the same time, the switch 12 is turned on to control and control the functional unit 1.
2 is given an automatic monitoring command C2, and the presence or absence of an abnormality is checked from its output 0UT2. Thereafter, the functions up to the functional unit (In) are checked in the same manner to complete one automatic inspection.

If the function request signal F is input during such an inspection, the power supply control unit 4 may interrupt the inspection depending on the importance of the functional unit whose function is requested, and turn on the secondary switch of the unit whose function is requested to perform the function. Even if the function request signal F is activated or the function request signal F is given, the automatic inspection continues, and after the inspection is completed, the control function according to the function request signal F is performed.

Therefore, by providing all the power source devices consisting of 2 to 5, it is possible to connect the DC power only to the machine H15 unit whose functions can be safely operated, thereby ensuring all necessary functions.
In order to control the tt source, the capacity and power source of the DC power supply 2 can be reduced, making it possible to downsize and reduce the cost. By reducing the primary input, it is possible to reduce power consumption in terms of AC power. Furthermore, since the power supply device is equipped with an automatic inspection function, time-sharing control of the power supply can be controlled with sufficient reliability.

FIG. 2 is a main circuit diagram showing another embodiment of the present invention.

The difference between the figure 1 and Figure 1 is that the electronic control unit is connected to a distant host computer, etc., and the function request signal F is received from the host machine.
is connected to the upper system 6 wirelessly or by wire, and the function request signal F is sent to the transmitter/receiver 7 in the device.
The signal F is transferred to the power supply control section 4, where the power supply control is performed in the same way as in the previous embodiment. Then, the output OU of some or all of the functional units 11-in
T.

~0UTn is sent back to the upper system 6 via the transmission section 7 as necessary. In the figure, the output of functional unit 1n is 0U.
This figure shows how to send Tn back to the upper system 6. For example, in a remote monitoring and control system, a measurement signal from a measurement system is transmitted to the upper system 6.

This embodiment also has the effects of reducing the capacity of the power source 2 and reducing voltage estimation, as in the previous embodiments.

In such an embodiment of the present invention, the control switches 31 to
When selectively turning on 3n, each functional unit outputs OUT when the power supply voltage is sufficiently established to avoid malfunctions due to transient fluctuations.

~0UTn　Equipped with an output lock circuit that locks f.

3(A) and (Bl) show an embodiment having an output lock function. In FIG. 3(fAl), the analog-to-digital converter 8n receives the input signal INn and its digital output is provided for processing by the digital processor 9n. The case of the needle-side functional unit is shown, the power supplies of both functional units 8n and 9n are both on/off controlled by the switch 3n, and the processing output of the digital processing section 9n is controlled by the output lock circuit 1.
Output lock control 1 is activated by 0n and inhibit circuit 11n. Therefore, after the switch 3n is turned on, the output lock circuit 10n outputs a signal that inhibits the output 0UTn from being sent out until the power supply voltage of the 11 measurement function unit is sufficiently established and the calculation using the input lNn1 is desired. The timer operates, 1! Prevents malfunctions due to transient fluctuations.

FIG.
The case is shown in which the power supply control switch 3n is connected to the digital processing unit 1.
The configuration is such that only the 2n power supply fIII is controlled. This is because the analog-to-digital converter 8n is kept in an operating state at all times to eliminate transient fluctuations in the analog-to-digital converter 8n since the functional unit is required to operate at high speed due to its functional purpose. In this case, an output lock circuit l is installed to prevent malfunctions due to trace fluctuations in the digital processing unit 12n.
On is activated, but the timer time Qi (FIG. 3) is shorter than in the case of Al, and the protection output can be obtained earlier.

As described above, according to the one side one method according to the present invention,
It is possible to reduce the noise, size, and cost of the control power supply, and it is also possible to reduce the average power consumption of the fc electronic control device from the point of view of the 'a' source.

[Brief explanation of drawings]

Fig. 1 is a temporary circuit diagram showing one embodiment of the present invention, Fig. 2 is a circuit diagram of the main part driving another embodiment of the invention, Fig. 3) and (B) are Fig. 1 and FIG. 3 is a main part configuration diagram of a functional unit in FIG. 2. 11z12p..., 1n...Functional unit, 2...
・DC power supply, 31zJn..., 3n... Control switch, 4... Power supply control unit, 5... DC power supply, 6...
Upper system, 7... Transmission section, 8n... Analog-digital conversion section, 9n. 12n...Digital processing unit, 10n...Output lock circuit, 11n...Suppression circuit. Figure 1

Claims (1)

[Claims] In an electronic control device including a group of electronic control functional units, the functional units whose functional operations can be performed in a time-division manner are equipped with a power supply device fr: which performs time-division control in accordance with the functions that all require power supply. Power control method for electronic control equipment.