JP5879671B2 - Analysis equipment - Google Patents

Description

  The present invention relates to an analyzer that supplies drive power to an analysis unit or the like (hereinafter simply referred to as power supply or power supply) from a commercial power supply or a power storage device.

For example, an analyzer such as an automatic water quality measuring device installed in a tap terminal for tap water continuously measures the water quality and sends the measurement data to the monitoring room of the Waterworks Bureau. The measured data is fed back to the water purification process to monitor and maintain the water quality and monitor the piping network.
Particularly in recent years, natural disasters such as earthquakes and floods tend to increase, and there is a strong demand to stably supply safe tap water even in the event of a disaster. For this reason, even if a commercial power supply fails due to a disaster or a so-called planned power outage, the analyzer should be continuously operated to monitor and maintain water quality continuously using measurement data without any defects. is necessary.
Recently, so-called peak cut operation has been recommended that subdivides the electricity charge according to the time of use and promotes the leveling of the amount of power used by consumers, and suppresses the power consumption of the entire power supply network during peak hours. Therefore, an operation that can contribute to the peak cut operation is also required in the power supply to the analyzer.

Here, in Patent Documents 1 to 3, a backup power source such as a battery is provided in addition to a main power source such as a commercial power source, and these power sources are selectively used to obtain driving power sources for various devices. Is disclosed.
That is, in Patent Document 1, in an automatic analyzer that feeds power from the uninterruptible power supply to each part of the analyzer during a power failure of the facility power supply, the power supply to a cold storage unit or the like unrelated to the analysis operation is stopped at the time of a power failure. A technique for reducing the load (capacity) of the power supply device is described.
In Patent Document 2, in an environmental test apparatus that performs a high-temperature and high-humidity environment test of a test object such as an electronic component, a backup power source such as a battery is operated in the event of a power failure to change the atmosphere state of the test object to a test environment or a predetermined environment. A technique for shifting to a standby environment is disclosed.
Patent Document 3 discloses a technique for switching a driving power source of an electronic device between an external power source such as a commercial power source and a battery according to a time zone in a power control method for the electronic device.

Japanese Patent Laid-Open No. 11-308783 (paragraphs [0020] to [0036], FIGS. 1 to 3 and the like). Japanese Unexamined Patent Publication No. 2007-240331 (paragraphs [0033] to [0044], FIG. 1, FIG. 3, FIG. 4, etc.). JP 2000-29576 A (paragraphs [0009], [0010], etc.).

The conventional techniques described in Patent Documents 1 and 2 are related to efficient and appropriate operation of a backup power source during a power failure in a so-called constant commercial power supply method, and are not intended for peak cut.
Further, in the prior art described in Patent Document 3, it is possible to charge the battery with a commercial power source at night, for example, and drive the electronic device using the battery during the daytime when the power consumption reaches its peak. . However, this conventional technology automatically switches between driving with a commercial power source and battery driving at a preset time by a power controller for a portable computer, and demands for peak cuts that change depending on power demand and power supply conditions. There is no disclosure of an idea that flexibly corresponds to the above.

  Therefore, the solution of the present invention is to effectively use a general uninterruptible power supply device that is arranged in the event of a power failure, and can flexibly respond to peak cut requests that change depending on the power demand and power supply situation It is to provide an analysis apparatus.

In order to solve the above-described problem, the analyzer according to claim 1 uses the power of the commercial power supply when power supply from a commercial power supply is obtained, and stores the power when the power supply from the commercial power supply is interrupted In the analysis apparatus comprising an uninterruptible power supply that supplies power using the charging power of the uninterruptible power supply and supplying the output power of the uninterruptible power supply as a drive power to the analysis unit,
Power supply interruption means is provided in the power supply path from the commercial power source to the uninterruptible power supply,
The analysis unit can output a power supply cutoff signal for intentionally cutting off power supply from the commercial power source to the uninterruptible power supply device to the power supply cutoff unit.

  The analysis apparatus according to claim 2 is the analysis apparatus according to claim 1, wherein the power supply cutoff signal is time information stored in the analysis unit, and is input via an input unit provided in the analysis unit. It is output based on time information that can be rewritten by a signal input by an operator or a signal input from the outside via a communication means connected to the analysis unit.

  The analyzer according to claim 3 is the analyzer according to claim 1 or 2, wherein the power cut-off signal is a signal input by an operator via an input means provided in the analyzer, and the analyzer It is output based on the signal input from the outside through the connected communication means, or the output signal of the sensor which the said analyzer has.

  The analysis apparatus according to claim 4 is the analysis apparatus according to any one of claims 1 to 3, wherein the communication means connected to the analysis unit uses the output power of the uninterruptible power supply as a drive power supply, Data analyzed and measured by the analysis unit is output to the outside, and an external signal is input to the analysis unit.

  The analyzer according to claim 5 is the analyzer according to any one of claims 1 to 4, wherein an environment in the analyzer is maintained in a power supply path from the power supply interrupting means to the uninterruptible power supply. It is characterized by connecting auxiliary equipment necessary for improvement.

  According to the present invention, the power supply from the commercial power supply to the uninterruptible power supply device is intentionally interrupted according to the situation, and the charging power of the power storage device of the uninterruptible power supply device is converted to AC power to supply power to the analysis unit Can do. For this reason, it is possible to effectively use a general uninterruptible power supply arranged in the event of a power outage even during a non-power outage, and flexibly respond to demands for peak cuts that change depending on power demand and power supply conditions. .

It is a block diagram which shows the whole structure of embodiment of this invention. It is a block diagram of the analysis part in FIG. It is a block diagram which shows the whole structure of other embodiment of this invention.

Hereinafter, embodiments of the present invention will be described with reference to the drawings. FIG. 1 is a block diagram showing the overall configuration of the analyzer according to this embodiment.
In FIG. 1, reference numeral 10 denotes a power supply box to which a commercial power supply 100 (AC 100 V) is input. A breaker 20 serving as a power supply interruption means is connected to an output side of the power supply box. , UPS) 30 is connected. This UPS 30 is a general one that can switch between a power supply method using a commercial power supply and a power supply method that converts DC power of the power storage device into AC power and supplies power. The power conversion / switching unit 31 and the power storage device The battery (lead storage battery) 32 is provided. Here, as the power storage device, an electric double layer capacitor or the like may be used in addition to the battery.

The power conversion / switching unit 31 in the UPS 30 is connected to an analysis unit 40 and a communication unit (DTU) 50 whose output is supplied as a power supply voltage (AC 100 V).
If the analyzer of this embodiment is a water quality automatic measuring device for tap water, for example, the analysis unit 40 is a sensor that measures the water temperature, residual chlorine concentration, chromaticity, turbidity, pH value, etc. of the water to be analyzed ( Detector). Further, the analysis unit 40 outputs a power supply cutoff signal S for turning off the breaker 20 and intentionally shutting off the power supply from the commercial power supply 100 to the UPS 30.

  The communication unit 50 can have a function of transmitting / receiving analysis / measurement data and various operation commands to / from a remote monitoring room, as well as a function of transmitting / receiving information via the Internet or other communication network. The communication method of the communication unit 50 is not limited to the type of communication line (public line, dedicated line) and the type of signal (electricity, light, etc.) regardless of wired or wireless.

Next, the configuration of the analysis unit 40 in FIG. 1 will be described in detail with reference to FIG.
In FIG. 2, an analysis unit 40 performs control and analysis operations inherent to the analysis apparatus, such as a control circuit 42 including a CPU, an input unit 43 such as a touch panel and a keyboard, a display 44 such as a liquid crystal display, A signal processing circuit 45 for processing the drive signal and output signal of the sensor 46 described above. The control circuit 42 is connected to a communication circuit 47 for transmitting / receiving various commands and data to / from the communication unit 50 shown in FIG.
Further, 41 is a power supply circuit connected to the power conversion / switching unit 31 in the UPS 30 of FIG. 1, and power is supplied from the power supply circuit 41 to each unit in the analysis unit 40.

Here, the control circuit 42 can store time information. This time information can be rewritten via the input unit 43 by an operator's input operation, and can be rewritten from the outside via the communication unit 50 and the communication circuit 47. It is possible. Further, the control circuit 42 includes a signal input by the operator through the input unit 43, a signal input from the outside through the communication unit 50 and the communication circuit 47 (including information received via the Internet or the like), sensor The power supply cutoff signal S is generated and output by using any one of 46 output signals or the time information alone or in combination.
The internal configuration of the analysis unit 40 is not the gist of the present invention, and the configuration is not limited to that shown in FIG. 2, but has a function of outputting the power cut-off signal S based on the various signals and information described above. It is necessary to be.

Next, the operation of this embodiment will be described.
First, as a general usage form of the UPS 30, when the commercial power source 100 is healthy without a power failure (including an abnormality such as a voltage drop in this case), it is turned on by the AC power of the commercial power source 100. The power is supplied from the breaker 20 to the analysis unit 40 and the communication unit 50 via the power conversion / switching unit 31, and the battery 32 is charged. When the commercial power supply 100 fails due to a sudden power failure or a planned power failure, the UPS 30 detects the occurrence of the power failure using a well-known means, and the power conversion / switching unit 31 converts the DC power of the battery 32 to AC. It changes to electric power feeding path so that it may convert into electric power and electric power may be supplied to analysis part 40 and communication unit 50.

Here, in the present embodiment, the breaker 20 is intentionally cut off using the power supply cut-off signal S output from the analysis unit 40, so that the commercial power supply 100 is switched to the UPS 30 even when the commercial power supply 100 is in a healthy state. The gist is to convert the direct current power of the battery 32 into alternating current power and supply the power to the analysis unit 40 and the like in the same way as during a power failure.
For example, the battery 32 is charged while supplying power to the analysis unit 40 or the like using so-called nighttime power, and the battery 32 is turned off by the power supply cutoff signal S during the day including the so-called peak time zone. The direct current power is converted into alternating current power by the power conversion / switching unit 31 and supplied to the analysis unit 40 and the like.
Further, not only when using the nighttime power described above but also intentionally shutting off the breaker 20 according to an arbitrary schedule, and supplying power to the analysis unit 40 and the like while maximally using the stored power of the battery 32 instead of the commercial power supply 100. May be performed.

  This makes it possible to effectively use general UPS 30 even during non-power outages, configure a power supply system that does not use commercial power supply 100 as much as possible, and flexibly respond to requests for peak cut, while analyzing / measuring operation by analysis unit 40 In addition, the analysis / measurement data and various operation commands can be transmitted / received to / from a remote monitoring room via the communication unit 50.

As described above, the power cut-off signal S output from the control circuit 42 includes time information in the control circuit 42 rewritable from the outside, an input signal by the operator via the input unit 43, the communication unit 50, and the communication circuit 47. The signal is generated based on a result obtained by combining one or a plurality of received signals from the outside and output signals of the sensor 46.
That is, as a timing for generating the power supply cutoff signal S, for example,
(1) Time information in the control circuit 42 is set to an arbitrary value from the outside, and when the time arrives by a timer operation (2) When an operator or an external signal is input (3) An output signal of the sensor 46 Reaches the set value (for example, when the temperature sensor or illuminance sensor detects that it has entered the peak power demand period)
(4) When a plurality of conditions among the above (1) to (3) are satisfied simultaneously (when AND logic is satisfied)
Etc. are considered.

As an example of the timing of generating the power cut-off signal S, for example, since the scheduled power outage time zone is known in advance, the control circuit 42 receives the planned power outage schedule from the outside via the Internet, and is set by this schedule and the operator. Based on the time information in the control circuit 42, the power cut-off signal S is output with a margin before the scheduled power failure start scheduled time, so that the power supply from the battery 32 is switched to the commercial power source 100 earlier than the power failure start time. Can refrain from using.
An operation method is also conceivable in which, for example, when the time when the water temperature or temperature measured by the temperature sensor exceeds a set value exceeds a predetermined time based on the time information in the control circuit 42, the power supply cutoff signal S is output.

Next, another embodiment of the present invention will be described with reference to FIG. The basic configuration of the analyzer shown in FIG. 3 is the same as that of the analyzer shown in FIG.
The analyzer shown in FIG. 3 is equipped with an auxiliary device 60 necessary for maintaining and improving the environment in the analyzer. Auxiliary machine 60 is composed of air conditioning, dehumidification equipment, lighting equipment, etc. in the analyzer, and performs air conditioning and dehumidification in the analyzer so that highly accurate analysis and measurement data can be acquired. It is possible to turn on the necessary lighting for maintenance and crime prevention.

As shown in FIG. 3, these auxiliary machines 60 are connected to the power supply path from the breaker 20 to the UPS 30 via the first sub-breaker 21 or directly.
When the auxiliary machine 60 is connected via the first sub-breaker 21 as shown in FIG. 3, the first sub-breaker 21 is turned off when the breaker 20 is turned on, so that the commercial power supply 100 is connected to the auxiliary machine 60. It is possible to reduce power supply and contribute to power saving. The on / off control of the first sub-breaker 21 may be performed by the control circuit 42 in the analysis unit 40 using the power supply cutoff signal S1.
Further, when the auxiliary device 60 is directly connected to the power supply path from the breaker 20 to the UPS 30, the power supply to the auxiliary device by the commercial power supply 100 is controlled in accordance with the ON / OFF of the breaker 20, similarly to the UPS 30 in FIG. Is done.
In this way, by connecting the auxiliary device 60 in front of the UPS 30, when the power failure or the breaker 20 is intentionally cut off, the operation of the auxiliary device 60 including air conditioning and dehumidification equipment with a relatively large amount of power consumption is performed. The stored power of the battery 32 of the UPS 30 can be intensively supplied to the analysis unit 40 and the communication unit 50 which are the minimum necessary functions as an analysis apparatus.

Further, as shown in FIG. 3, by connecting the second subbreaker 22 to the power supply path from the breaker 20 to the UPS 30, the second subbreaker 22 is turned off when the breaker 20 is turned on, and analysis is performed from the battery 32 of the UPS 30. Power can be supplied to the unit 40 and the like.
In this case, the on / off control of the second subbreaker 22 may be performed by the control circuit 42 in the analysis unit 40 using the power supply cutoff signal S2.
Since the on / off operation of the first and second sub-breakers 21 and 22 is related to the on / off operation of the breaker 20, the power supply cutoff signals S1 and S1 for the first and second sub-breakers 21 and 22 are used. S2 needs to be generated in association with the power cut-off signal S for the breaker 20.

As described above, according to the present embodiment, the dependence on the commercial power source can be reduced by maximizing the use of a power storage device of a general-purpose UPS, and flexible and low-cost for the request of peak cut. Can respond.
Further, since various resources such as various sensors and communication units originally provided in the analyzer can also be used as means for generating a power cut-off signal, it is possible to effectively use components and circuits.

  INDUSTRIAL APPLICABILITY The present invention can be used in general for analysis apparatuses that are required to continuously collect analysis data and measurement data, including automatic water quality measurement apparatuses.

10: Power supply box 20: Breaker (power supply cutoff means)
21, 22: Sub-breaker 30: Uninterruptible power supply (UPS)
31: Power conversion / switching unit 32: Battery 40: Analysis unit 41: Power supply circuit 42: Control circuit 43: Input unit 44: Display unit 45: Signal processing circuit 46: Sensor 47: Communication circuit 50: Communication unit 60: Auxiliary machine 100: Commercial power supply S, S1, S2: Power cut-off signal

Claims (5)

An uninterruptible power supply that supplies power using the power of the commercial power supply when the power supply from the commercial power supply is obtained, and supplies power using the charging power of the power storage device when the power supply from the commercial power supply is interrupted In the analysis device that supplies the output power of the uninterruptible power supply device as a drive power source to the analysis unit,
Power supply interruption means is provided in the power supply path from the commercial power source to the uninterruptible power supply,
The analyzer is capable of outputting a power supply cutoff signal for intentionally shutting off power supply from the commercial power supply to the uninterruptible power supply to the power supply cutoff means. The analyzer according to claim 1,
The power cut-off signal is time information stored in the analysis unit, and is a signal input by an operator via an input unit provided in the analysis unit or a communication unit connected to the analysis unit. An analyzer which is output based on time information which can be rewritten by an externally input signal. The analyzer according to claim 1 or 2,
The power cut-off signal is a signal input by an operator via an input unit provided in the analysis unit, a signal input from the outside through a communication unit connected to the analysis unit, or the analysis device An analyzer that is output based on an output signal of a sensor having the sensor. In the analyzer according to any one of claims 1 to 3,
The communication means connected to the analysis unit uses the output power of the uninterruptible power supply as a drive power source, outputs the data analyzed and measured by the analysis unit to the outside, and inputs an external signal to the analysis unit An analyzer characterized by that. In the analyzer according to any one of claims 1 to 4,
An analysis apparatus characterized in that an auxiliary machine necessary for maintaining and improving the environment in the analysis apparatus is connected to a power supply path from the power supply interruption means to the uninterruptible power supply.

Images