JP6840046B2 - Portable measuring instrument - Google Patents

Description

The present invention is configured to include a measuring unit capable of measuring the surrounding environment state and a control unit having a measurement mode for measuring the surrounding environment state with the measuring unit and notifying the portable person of the measurement result. Regarding portable measuring instruments.

Examples of this type of portable measuring instrument include, as shown in Patent Documents 1 and 2, a measuring instrument main body including the measuring unit, the control unit, a display unit as a notification unit, and the like, and measurement of the measuring instrument main body. It is known that the part is equipped with a gas introduction part capable of introducing the gas of the surrounding environment.
In such a portable measuring instrument, the concentration of the gas to be measured (in the surrounding environment state) is measured at the measuring unit by introducing gas from the gas introducing unit into the measuring instrument main body in the measuring mode while the portable measuring instrument is carried by the portable person. An example) can be measured and the measurement result such as the concentration of the gas to be measured can be notified to the mobile phone in the form of being displayed on the display unit.

Japanese Unexamined Patent Publication No. 11-118682 Jikkenhei 4-136794

By the way, in this type of portable measuring instrument, the measuring unit is generally automatically calibrated (so-called zero reset) immediately after the power is turned on, so that the portable person can perform the measurement work in a normal surrounding environment. After turning on the power at a good starting place (for example, a starting place where the gas in the surrounding environment is clean) and performing automatic calibration of the measuring unit properly, move to the measuring place and measure the surrounding environment state in the measurement mode. Is going.
Here, it is conceivable that the surrounding environment state of the movement route from the starting place where the power is turned on to the measurement place and the surrounding environment state of the measurement place are abnormal states that pose a danger to the mobile phone. With the portable measuring instrument, in the above-mentioned measurement work, it is not possible to notify the portable person whether or not the surrounding environmental condition is abnormal at the time of moving from the starting place to the measuring place or when arriving at the measuring place. It was.

In view of this situation, a main object of the present invention is to provide a safe and secure portable measuring instrument capable of notifying a portable person whether or not the surrounding environmental condition is abnormal in the process of moving to a measuring place or the like. is there.

The first characteristic configuration of the present invention includes a measuring unit capable of measuring the surrounding environmental condition and a measuring unit.
It is a portable measuring instrument configured to include a control unit having a measurement mode for measuring the surrounding environment state with the measuring unit and notifying the portable person of the measurement result.
The control unit further has a safety mode in which the measurement unit measures the surrounding environment state, determines whether or not the measurement result is abnormal, and notifies the portable person of the determination result.

According to this configuration, the control unit measures the surrounding environment state at the measuring unit, and in addition to the measurement mode for notifying the portable person of the measurement result, the measuring unit measures the surrounding environment state, and the measurement result is obtained. Since it also has a safety mode that determines whether or not is abnormal and notifies the carrier of the determination result, operation control is performed in the safety mode even when the surrounding environment state is not measured in the measurement mode. can do. Therefore, in the process of moving to the measurement location or the like, the surrounding environment state can be measured in the safety mode, it can be determined whether or not the measurement result is abnormal, and the determination result can be notified to the portable person.
Therefore, it is possible to provide a safe and secure portable measuring instrument that can notify the portable person whether or not the surrounding environmental condition is abnormal in the process of moving to the measuring place.

The second characteristic configuration of the present invention is that the control unit is configured to notify the mobile phone in different notification modes in the measurement mode and the safety mode.

According to this configuration, the control unit notifies the mobile phone in different notification modes in the measurement mode and the safety mode, so that the mobile phone is informed of the measurement result of the surrounding environment state in the measurement mode. Whether or not the determination result of whether or not the surrounding environment state is abnormal is notified in the mode can be quickly grasped only by identifying the notification form.

In the third characteristic configuration of the present invention, the ambient environmental condition is the concentration of the gas to be measured.
In the measurement mode, the measurement result is notified to the mobile phone in a notification form output to the display unit.
The safety mode is configured to notify the mobile phone of the determination result in a notification form in which the alarm unit alerts when the measurement result is determined to be abnormal.

According to this configuration, in the measurement mode, the measurement result by the measurement unit can be accurately notified to the portable person in the notification form in which the numerical value of the concentration of the gas to be measured is output to the display unit. On the other hand, in the safety mode, when the measurement result by the measurement unit is determined to be abnormal, the determination result can be promptly and surely notified to the portable person in the notification form in which the alarm unit gives an alarm with an alarm sound or the like.

The fourth characteristic configuration of the present invention is that the control unit is configured to control the operation in the safety mode between the time when the control unit is started and the time when the operation is controlled in the measurement mode.

According to this configuration, the control unit automatically controls the operation in the safety mode between the time when the control unit is started and the time when the operation is controlled in the measurement mode. It is possible to measure the surrounding environment state by controlling the operation in the safety mode at the time of arrival at the process or the measurement place, determine whether or not the measurement result is abnormal, and notify the portable person of the determination result.
Therefore, it is possible to notify the mobile phone whether or not the surrounding environment is abnormal before starting at the starting place, moving from the starting place to the measuring place, and controlling the operation in the measurement mode, which is more secure. A secure portable measuring instrument can be provided.

The fifth characteristic configuration of the present invention is that the control unit is configured to be able to switch between the measurement mode and the safety mode.

According to this configuration, the mobile phone can switch between the measurement mode and the safety mode at an appropriate timing. Therefore, the measurement work of the surrounding environment state can be carried out safely and efficiently.

The sixth characteristic configuration of the present invention is that the resolution of the measuring unit in the safety mode is set higher than the resolution of the measuring unit in the measuring mode.

According to this configuration, in the safety mode, the measurement unit set to have a higher resolution than the measurement mode can measure the surrounding environment state in small measurement steps. Then, based on the measurement result measured in small measurement steps, it is possible to determine with high accuracy whether or not the surrounding environment state is abnormal. Therefore, it is possible to provide a more secure and safe portable measuring instrument.

(A) perspective view of the portable measuring instrument, (b) bottom view (bottom view) of the portable measuring instrument. Block diagram showing the schematic configuration of a portable measuring instrument The figure which shows the control flow in the measurement mode The figure which shows the control flow in a safety mode The figure which shows the control flow from power-on to power-off

An embodiment of the portable measuring instrument of the present invention will be described with reference to the drawings.
As shown in FIG. 1A, the portable measuring instrument 1 includes a measuring instrument main body 2 that can be grasped by a portable person, and a gas introduction unit 3 that projects upward from the measuring instrument main body 2. Gas is introduced from the gas introduction unit 3 into the measuring instrument main body 2, and the concentration of the measurement target gas in the introduced gas (an example of the surrounding environment state) is measured by the measuring instrument main body 2. The portable measuring instrument 1 can be suitably used, for example, when measuring the concentration of carbon monoxide in the combustion exhaust gas for determining the combustion state of a gas combustion device or the like.

The gas introduction unit 3 is configured to have a distribution space through which gas can flow. For example, a collection hood unit 3A for collecting a wide range of gas, and a predetermined type of gas (for example, NOx) in the collected gas. ) And a filter unit 3B for removing dust and the like. The collection hood unit 3A and the filter unit 3B can be appropriately changed, and may be omitted in some cases.

The peripheral side surface portions (front surface portion, left and right side surface portions, and rear surface portion) of the measuring instrument main body 2 are formed in an outer shape that can be easily gripped by the carrier with one hand, and form a grip portion of the carrier. The front surface of the measuring instrument main body 2 is provided with a first display unit 5A (display unit 5) that performs various displays as a notification unit 4 on the upper side thereof, and an operation unit 6 that performs various operations is provided on the lower side thereof. It is equipped. The first display unit 5A is composed of, for example, a display showing a measurement result, an operating state, and the like, and a lamp capable of expressing the operating state and the like in a light emitting state.

Further, as shown in FIG. 1B, the lower surface portion of the measuring instrument main body 2 is provided with a second display unit 5B (display unit 5) that performs various displays as a notification unit 4. The second display unit 5B is composed of a lamp capable of expressing an operating state or the like in a light emitting state. In this way, the second display unit 5B is arranged on the lower surface portion of the measuring instrument main body 2 facing the carrier in the measuring posture in which the mobile phone grips the peripheral side surface portion of the measuring instrument main body 2 and extends the arm forward. Therefore, various displays such as the operating state can be visually recognized by the portable person in the measurement posture.

For example, a gas sensor, a suction pump, a speaker, a power source for a battery, a microcomputer, and the like are provided inside the measuring instrument main body 2, and as shown in FIG. 2, gas is inside the measuring instrument main body 2 through the gas introduction unit 3. A suction unit (not shown) that sucks the gas, a measurement unit 7 that measures the concentration of the gas to be measured from the gas sucked by the suction unit, an alarm unit 8 that emits an alarm sound (an example of an alarm) as the notification unit 4, and each unit. A functional unit such as a control unit 9 that controls an operating state is configured.

As the gas sensor, for example, a constant potential electrolytic gas sensor capable of detecting carbon monoxide can be preferably used, but various types of gas sensors capable of detecting the gas to be measured can be appropriately used. Further, in the present embodiment, the case where one gas sensor is used is given as an example, but a plurality of gas sensors can also be used.

The control unit 9 includes a determination unit 9A capable of determining whether or not the measurement result of the measurement unit 7 is abnormal, and for example, in a determination form such as whether or not the concentration of the measurement target gas as the measurement result exceeds the threshold value. , It is configured so that it can be determined whether or not the measurement result of the measuring unit 7 is abnormal. Here, a plurality of threshold values are set stepwise, and the determination unit 9A can stepwise determine whether or not there is an abnormality.
Further, the control unit 9 includes a mode setting unit 9B for setting the operation mode of the portable measuring instrument 1, and sets the operation mode of the portable measuring instrument 1 based on a preset program or an operation command from the operation unit 6. It is configured to be configurable.
The control unit 9 can control the operating state of each unit and cause the portable measuring instrument 1 to execute each process such as setting process, measurement process, determination process, and notification process, which will be described later.

The control unit 9 is an operation mode that is mainly set when measuring the concentration of the measurement target gas at an arbitrary measurement location, and the measurement unit 7 measures the concentration of the measurement target gas and measures the concentration. It has a measurement mode that notifies the carrier of the result. Further, in addition to this measurement mode, the control unit 9 is an operation mode mainly set in the moving process from the starting place to the measuring place, and the measuring unit 7 measures the concentration of the gas to be measured, and the measurement unit 9 measures the concentration of the gas to be measured. It has a safety mode that determines whether or not the measurement result is abnormal and notifies the carrier of the determination result.
Here, the control unit 9 is configured to be able to switch between the measurement mode and the safety mode by switching to the operation unit 6 of the mobile phone, and further notifies the mobile phone in different notification modes in the measurement mode and the safety mode. It is configured to do.
Hereinafter, the measurement mode and the safety mode whose operation is controlled by the control unit 9 will be described.

<Control flow in measurement mode>
In the measurement mode, the measurement unit 7 measures the concentration of the gas to be measured, and the measurement result is notified to the portable person in a notification form that is output to the display unit 5.

The measurement mode includes, for example, a peak mode in which the peak value of the measured concentration within a predetermined time is output to the display unit 5 as a measurement result, and an average value of the measured concentrations within the predetermined time is output to the display unit 5 as a measurement result. Average mode, monitoring mode that outputs the measured concentration at all times as a measurement result to the display unit 5 in real time format, and judgment mode that outputs the result of judging these measurement results by a predetermined standard (an example of the measurement result) to the display unit 5. Etc., and is configured so that the portable person can select a desired measurement mode by operating the operation unit 6 or the like.

When the measurement mode is set by the mode setting unit 9B, as shown in FIG. 3, a setting process for setting the measurement range and resolution of the measurement unit 7 to the measurement setting for the measurement mode is executed (step # 11). Here, the measurement range of the measurement unit 7 is set to the default measurement mode measurement range Rm (for example, 5,000 ppm) suitable for measurement, and the resolution of the measurement unit 7 is set to the default measurement mode resolution Dm (for example, 5,000 ppm) suitable for measurement. For example, the resolution is set in increments of 10 ppm).

After executing the setting process, the concentration of the measurement target gas in the gas introduced from the gas introduction unit 3 is set for the measurement mode according to the measurement command by the operation to the operation unit 6 of the mobile phone or the preset program. The measurement process to be measured by the measuring unit 7 is executed (step # 12). When the above-mentioned determination mode is set as the measurement mode, the determination unit 9A executes a process of determining the measurement result based on a predetermined standard as a series of processes of the measurement process.

After the measurement process is executed, the notification process for outputting the measurement result in the measurement process to the display unit 5 is executed (step # 13). By confirming the measurement result output to the display unit 5, the mobile phone can accurately grasp the measurement result at the measurement location.

<Control flow in safety mode>
In the safety mode, the measurement unit 7 measures the concentration of the gas to be measured, the determination unit 9A determines whether or not the measurement result is abnormal, and when the measurement result is determined to be abnormal, the alarm unit 8 determines. The determination result is notified to the portable person in the notification form of warning.

When the safety mode is set by the mode setting unit 9B, as shown in FIG. 4, a setting process for setting the measurement range and resolution of the measurement unit 7 to the measurement setting for the safety mode is executed (step # 21). Here, the measurement range of the measurement unit 7 is set to the safety mode measurement range Rs (for example, 350 ppm), which is narrower than the measurement mode measurement range Rm. Further, the resolution of the measuring unit 7 is set to the safety mode resolution Ds (for example, the resolution in 1 ppm increments), which is higher than the measurement mode resolution Dm. In other words, the measurement step of the measurement unit 7 in the safety mode is set to be smaller than the measurement step of the measurement unit 7 in the measurement mode.

Therefore, in the safety mode, the resolution is set higher than that in the measurement mode, but the measurement range is set narrower. Therefore, while the specifications of the measurement unit 7 are the same, the increase in the arithmetic processing load in the subsequent measurement processing is suppressed. In this state, the concentration of the gas to be measured can be precisely measured in small measurement steps.

After the execution of the setting process, the measurement process of measuring the concentration of the gas to be measured in the gas introduced through the gas introduction unit 3 by the measurement unit 7 set for the safety mode is executed according to a preset program or the like. (Step # 22).

After executing the measurement process, a determination process for determining whether or not the measurement result of the measurement process is abnormal is executed according to a preset program or the like (step # 23).
Then, after the determination process is executed, if the measurement result is determined to be abnormal, the alarm unit 8 executes the notification process of issuing an alarm sound (step # 24). Therefore, the portable person can grasp by hearing that the surrounding environmental state of the current location is abnormal without visually recognizing the portable measuring instrument 1.
On the other hand, when it is determined that the measurement result is not abnormal, the measurement result in the measurement process is output to the display unit 5 in the notification process.
In the determination process, it is possible to determine whether or not there is an abnormality in a stepwise manner, and in that case, the alarm by the alarm unit 8 in the notification process can also be performed stepwise at different volumes.

<Control flow from power ON to power OFF>
Next, the control flow from the power ON to the power OFF of the portable measuring instrument 1 will be described. In the present embodiment, a case where the control unit 9 controls the operation in the safety mode between the time when the control unit 9 is activated and the time when the operation is controlled in the measurement mode is given as an example.

As shown in FIG. 5, when a power ON command is given by an operation or the like to the operation unit 6 of the mobile phone at the starting place or the like, the power is turned on and started, and the gas sensor is started according to a preset program or the like. The measurement unit 7 is automatically calibrated (zero reset) by raising it, and the safety mode is set by the mode setting unit 9B, and the operation is automatically controlled in the safety mode (Yes in step # 31, step # 32). ).
When a plurality of gas sensors are provided, the gas sensor having the earliest rise time can be used to quickly control the operation in the safety mode after the start-up.

In this safety mode, the measurement unit 7 measures the concentration of the gas to be measured, determines whether or not the measurement result is abnormal, and if the measurement result is determined to be abnormal, the alarm unit 8 gives an alarm. Since the determination result is notified to the mobile phone, the mobile phone can move from the activation location to the measurement location with peace of mind.

When the mobile phone arrives at the measurement location and is instructed to start the measurement mode by operating the operation unit 6 of the mobile phone during operation control in the safety mode, the measurement mode is entered (Yes in step # 33). , Step # 34).
In this measurement mode, the measurement unit 7 measures the concentration of the gas to be measured, and the measurement result is notified to the mobile phone in a notification form that is output to the display unit 5, so that the mobile phone can display the measurement result at the measurement location. It can be grasped accurately.

The operation of starting the measurement mode on the operation unit 6 is simplified when the power is turned on for the second time or later as compared with when the power is turned on for the first time. Specifically, when the power is turned on for the first time, it is selected by selecting a desired measurement mode from a plurality of measurement modes displayed on the display unit 5 by operating the operation unit 6 or the like and then instructing the start. It is configured to shift to the measured measurement mode. On the other hand, when the power is turned on for the second time or later, the measurement mode used last time is selected in advance, and it is configured to shift to the measurement mode last used last time by simply instructing the start. ing.

If the operator is instructed to return to the safety mode by switching to the operation unit 6 of the carrier during operation control in the measurement mode, such as when the mobile phone moves to another measurement location, the safety mode is set again. Return (Yes in step # 35, step # 32). Therefore, even when the measurement location is changed, the portable person can safely move to another measurement location by returning the portable measuring instrument 1 to the safety mode.
On the other hand, during operation control in the measurement mode, if the return of the safety mode is not commanded (No in step # 35) and the power is commanded to be turned off by the operation of the operation unit 6 of the portable person, the power is turned off. And stop (Yes in step # 36).

[Another Embodiment]
Other embodiments of the present invention will be described. The configurations of the respective embodiments described below are not limited to being applied independently, but can also be applied in combination with the configurations of other embodiments.

(1) In the above-described embodiment, the case where the return to the safety mode is commanded by the operation of the operation unit 6 of the mobile phone or the like is shown as an example during the operation control in the measurement mode, but instead of this, Or, in addition to this, during operation control in the measurement mode, if the state in which the operation unit 6 is not operated continues for a predetermined time (in other words, a predetermined non-operation time for the operation unit 6 elapses), the safety mode It may be configured so that the return to is automatically commanded.

(2) In the above-described embodiment, as the measurement setting for the safety mode, the measurement range Rs for the safety mode is narrower than the measurement range Rm for the measurement mode, and the resolution Ds for the safety mode is higher than the resolution Dm for the measurement mode. However, for example, in order to reduce the addition of arithmetic processing in the safety mode, the measurement range Rs for the safety mode is measured while the resolution Ds for the safety mode and the resolution Dm for the measurement mode remain the same. The setting may be narrower than the mode measurement range Rm, and the safety mode measurement setting and the measurement mode measurement setting can be appropriately changed.

(3) When the portable measuring instrument 1 is provided with a plurality of gas sensors, the performances such as the rise time from when the power is turned on until the detection becomes possible, the detectable gas type, and the detection performance are different as the plurality of gas sensors. A plurality of types of gas sensors may be used, and for example, two types of gas sensors, a gas sensor suitable for the safety mode and a gas sensor suitable for the measurement mode, may be used.

(4) In the above-described embodiment, the concentration of the measurement target gas at the measurement location is shown as an example of the ambient environmental condition measured by the portable measuring instrument 1, but the measurement target gas such as the temperature of the measurement location is shown. It may be something other than the concentration. Further, in the above-described embodiment, carbon monoxide is shown as an example of the gas to be measured, but a gas other than carbon monoxide such as hydrogen sulfide may be used.

(5) In the above-described embodiment, when the power is turned on and the portable measuring instrument 1 is activated, the control unit 9 is configured to first control the operation in the safety mode and then control the operation in the measurement mode. However, on the contrary, when the power is turned on and the portable measuring instrument 1 is activated, the control unit 9 is configured to first control the operation in the measurement mode and then control the operation in the safety mode. It may have been done.

(6) The switching operation for switching between the measurement mode and the safety mode can be appropriately set. For example, the switching operation from the measurement mode to the safety mode and the switching operation from the safety mode to the measurement mode can be performed. The same operation may be set for the operation unit 6 and the like, or different operations may be set for the operation unit 6 and the like.

1 Portable measuring instrument 2 Measuring instrument body 3 Gas introduction unit 4 Notification unit 5 Display unit 6 Operation unit 7 Measuring unit 8 Alarm unit 9 Control unit

Claims (6)

A measuring unit that can measure the surrounding environment and
It is a portable measuring instrument configured to include a control unit having a measurement mode for measuring the surrounding environment state with the measuring unit and notifying the portable person of the measurement result.
The control unit is a portable measuring device further having a safety mode in which the measurement unit measures the surrounding environment state, determines whether or not the measurement result is abnormal, and notifies the portable person of the determination result. The portable measuring instrument according to claim 1, wherein the control unit is configured to notify the portable person in different notification forms in the measurement mode and the safety mode. The surrounding environmental condition is the concentration of the gas to be measured.
In the measurement mode, the measurement result is notified to the mobile phone in a notification form output to the display unit.
The portable measuring instrument according to claim 2, wherein in the safety mode, the determination result is notified to the portable person in a notification form in which the alarm unit warns when the measurement result is determined to be abnormal. The portable device according to any one of claims 1 to 3, wherein the control unit is configured to control the operation in the safety mode between the time when the control unit is activated and the time when the operation is controlled in the measurement mode. Type measuring instrument. The portable measuring instrument according to any one of claims 1 to 4, wherein the control unit is configured to switch between the measurement mode and the safety mode. The portable measuring instrument according to any one of claims 1 to 5, wherein the resolution of the measuring unit in the safety mode is set higher than the resolution of the measuring unit in the measuring mode.

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