JP4267361B2 - Work-specific alarm system based on the amount of new snow - Google Patents

Description

[0001]
OBJECT OF THE INVENTION
    The present invention relates to a meteorological observation technique in which a detector is installed outdoors, and the amount of snow in winter can be sequentially and automatically measured, and particularly in major roads, railways, airports, etc. Monitor the amount of new snow mechanically, inform that the amount has reached a certain amount that must be grasped for safety, and make sure that the worker accurately determines when to start snow removal work. New amount of snow to make possibleBy workIt is intended to provide an alarm system.
[0002]
[Prior art]
    The main national roads and prefectural roads in Japan are snow-removed 24 hours a day in winter, and in order to efficiently remove the fresh snow that has accumulated on the roads, it can be crushed by a passing vehicle, resulting in pressure snowfall. It is necessary to remove snow quickly before it freezes or freezes due to low temperatures. Especially, workers in charge of snow removal at night pay attention to the weather forecast from the previous day and set the scales installed outdoors. Peep the board from the evening to the next morning to check the amount of fresh snow and confirm that it has reached the amount of snow that requires snow removal, and remove snow to ensure traffic safety regardless of time. Therefore, the burden on the snow removal worker, such as the inability to sleep at night, was immeasurable.
[0003]
    In addition, an alarm device that issues an alarm when the amount of new snow reaches a predetermined amount is also used, but it is impossible to grasp the extent of snow accumulation with such an alarm, for example, the amount of new snow is small It is necessary to arrange various snow removal systems according to the amount of new snow, such as when a snow removal truck is dispatched in some cases, and it is necessary to activate a grader or rotary car when there is a lot of new snow. However, in places where snow removal is necessary, more detailed consideration is required, and it has not always been possible to cope with them, and those that can be dealt with are quite expensive.
[0004]
    As an effective technique for making a qualification for dispatching snow removal work, for example, as disclosed in Japanese Patent Application Laid-Open No. 11-211846, ultrasonic waves are oscillated toward the snow surface and reflected by this surface. A snow depth gauge invention that detects echo density by receiving echo waves has already been developed and proposed. Although it can be used to accurately determine the necessity of snow removal work, the alarm function In addition to leaving the problem that it is necessary to check each time the snow removal work is necessary by repeated visual inspection, the equipment is more expensive than anything else. Could not be resolved.
[0005]
    Japanese Patent Application Laid-Open No. 63-88489 discloses that the amount of snow accumulation can be observed by providing light detection units arranged at regular intervals in the vertical direction and a laser light emitting unit opposite to the light detection units. The invention of an “automatic snow depth meter with an alarm device” has been proposed, and a snow removal worker can rest assured that an alarm is issued even at night. Although it is possible to sleep well, the amount of snow that triggers an alarm is limited to a single preset amount of snow, so it is impossible to judge various dispatch systems from the alarm itself, and the light detection unit The laser light emitting unit is erected and fixed on the ground, so that it cannot be easily moved and installed, and also has an unavoidable drawback of being expensive.
[0006]
    As has been verified above, the present invention has doubts about the circumstances of this kind of thing until now, has begun to develop and research it quickly, and repeated trial and error over a long period of time and numerous trial manufactures and experiments. As a result, the amount of new snowBy workThe present invention has succeeded in realizing the alarm system, and the configuration thereof will be described in detail below together with an embodiment representative of the present invention shown in the drawings.
[0007]
[Structure of the invention]
    As will be clearly understood from the embodiments representative of the present invention shown in the drawings,By workThe alarm device basically has the following structure.
    That is, a horizontal flat measurement base and an echo from fresh snow that is fixedly supported at a predetermined height position on the measurement base, oscillates ultrasonic waves toward the upper surface of the measurement base, and falls on the upper surface of the measurement base. A new snow amount detector that can detect the average amount of new snow by detecting multiple times, receives the detection signal output from the new snow amount detector, and can sequentially display the new snow amount externally And the amount of fresh snowAs a guideline, it is possible to perform a light snow removal work in the amount of new snow determined according to various conditions such as differences in weather conditions depending on the region and its topography, conditions for snow removal work, etc.Low amount of fresh snow,As a guideline, it is necessary to dispatch a snow removal machine with high capacity.A new snow amount display setting unit that can be set and input as appropriate to the high fresh snow amount, and a new snow amount recording unit that can record the new snow amount received from the new snow amount detector as digital or analog information sequentially, are provided externally. Exposed toLow alarm lamp, high alarm lamp and alarm buzzerThe alarm unit is connected to each other, and a detection signal is received from the new snow amount detector at every preset time or at every appropriately set time, and the detected value is sent to the new snow amount display setting unit.Pre-set and inputWhen the low fresh snow level is reached or exceeded, the low warning lamp lights or flashes.Encourage minor snow removal work,furtherPresetWhen the amount of high fresh snow is reached or exceeded, the high level alarm lamp lights or flashes and the alarm buzzer is activated.Encourage them to enter a position to activate a snow removal machine with high performanceThe amount of new snow that has a control unit that can be automatically controlled and that has a new snow amount alarm device that has an output line for an external buzzer that can output the same control signal as an alarm buzzerBy workIt is an alarm system.
[0008]
    The new snow amount setting unit allows the observer to set and input the new snow amount that requires an alarm in advance by the observer himself / herself before observation of the new snow amount, preferably the lower fresh snow amount and the higher fresh snow amount. A function that allows the user to arbitrarily set the amount of new snow to be alarmed individually or in multiple stages, such as the amount of low fresh snow, the amount of medium fresh snow, and the amount of high fresh snow. The new snow amount must be structured so that the user of the new snow amount alarm device can freely set and change as appropriate, and there are settings and input parts for buttons, operation knobs, adjustment knobs, etc. for numerical input. It is desirable to be able to confirm the setting contents by displaying the set new snow amount, and it can only fulfill the function of transferring the input signal of the set new snow amount to the control unit. Detection output from new snow detector A function that allows the alarm unit to automatically issue an alarm when the set new snow amount reaches or exceeds the set new snow amount, or detects the new snow amount When the detection signal output from the device reaches or exceeds the set new snow amount that has been set and input, a signal that informs the controller of this can be issued.
[0009]
    The new snow amount display unit receives the detection signal output from the new snow amount detector and appropriately calculates and processes the new snow amount based on the received signal, or the new snow amount detector displays the detected value. Arithmetic processing unit (control unit) that executes calculation processing to convert to new snow amount, receives the received new snow amount or a detection signal output from the new snow amount detector, and executes arithmetic processing based on the received signal ) The new snow amount obtained through) is sequentially displayed in the appropriate place outside this new snow amount alarm device with numerical values, scales and guidelines, etc. so that the observer can at least visually recognize the fresh snow amount observed immediately before For example, a digital display such as a liquid crystal display panel or an LED display panel, or a pointer that moves relative to a fixed scale plate is marked or fixed. It can be such as those for analog display, such as those provided with a scale plate to be moved relative to the resulting guidelines provided.
[0010]
    The new snow amount display setting unit combines the functions of both the new snow amount setting unit and the new snow amount display unit. Before the new snow amount is observed, a new snow amount that requires an alarm is set in advance by an observer. In addition to being able to set and input, the new snow amount can be displayed sequentially based on the detection signal output from the new snow amount detector, and a new snow amount that issues an alarm as needed by the user is set. It must be possible to input, and input parts such as switch buttons and knobs that make it possible to change the input value relatively easily must be provided, and can be set at preset times or by the user as appropriate. A display part capable of sequentially updating and displaying the amount of fresh snow detected at each time should be provided, and a display part of the detected fresh snow quantity detected sequentially and a display part of the set new snow quantity appropriately set and input by the user And both , Is arranged to close, it is desirable shall be displayed both in comparable conditions at a glance.
[0011]
    The new snow amount recording unit records the new snow amount detected sequentially by the new snow amount detector by directly writing or printing on a recording sheet, or a semiconductor memory, a read / write magnetic disk, etc. The new snow amount during measurement is converted into analog information or digital information, and the function of automatically recording is recorded. The numerical value should be recorded, or the relationship between the elapsed time and the amount of new snow should be recorded in a graph, etc., and it should be recorded separately from the new snow amount alarm device. Various drives such as a connected personal computer or a printer controlled by a control unit, a hard disk, a floppy disk, and a magneto-optical disk may be used.
[0012]
    The alarm unit automatically emits light and / or sound etc. when the amount of new snow obtained by being automatically observed sequentially reaches or exceeds the set amount of new snow, This function notifies the user and people around the new snow amount alarm that the new snow amount has already reached the set value, and calls for warning. The control unit, the new snow amount setting unit, and the new snow amount An alarm should be issued under any control of the display setting unit or the like, or the alarm unit itself has a simple control unit, receives a detection signal from the new snow amount detector, and receives a new snow amount. It is possible to automatically issue an alarm in comparison with the amount of fresh snow set in the setting unit.For example, an alarm lamp that operates under the control of the control unit is provided, and this is turned on or blinked. An alarm should be issued or green if necessary A low warning lamp and a red high warning lamp are provided, which emits a low warning lamp when the amount of new snow is still low, and emits a high warning lamp when the amount of new snow is high to make it easier to grasp the amount of new snow. It is also possible to provide a warning buzzer and issue a sound warning according to the amount of new snow.
[0013]
    The control unit can control each unit such as the new snow amount setting unit and the alarm unit provided in the new snow amount alarm device in an integrated manner, and also controls the new snow amount detector to detect the new snow amount and to change the observation value. Based on this function, the system automatically controls the series of movements such as issuing a warning based on the amount of new snow to manage the entire work-by-work warning system in a unified manner. At each time, a detection signal from the new snow amount detector is received, and whether or not the detected value has reached the set new snow amount set in advance by the observer, or whether the set new snow amount has been exceeded. The new snow amount alarm device, or the new snow amount detector and the new snow amount alarm device are activated so that the alarm unit is activated and notified to the observer when the set new snow amount is reached (exceeded). Shall be automatically controllable In addition, the new snow amount detector is activated at each set time, and a signal indicating that the set new snow amount is reached or exceeds the set new snow amount is oscillated from the new snow amount setting unit that has received the detected value. The new snow amount alarm device, or the new snow amount detector and the new snow amount alarm device can be automatically controlled so that the alarm unit is activated, for example, various sequencers Alternatively, an input circuit from a new snow amount detector or an input circuit from a new snow amount setting unit via a I / O interface to a CPU (central processing unit) composed of a microcomputer or the like and connected with a memory storing a control program , And an output circuit to the alarm unit, etc. can be connected, and the control unit activates the new snow amount detector at each set time. In addition to the structure that controls to detect the amount of new snow, it is also possible for the new snow amount detector itself to automatically detect the amount of new snow at each set time and output the detection signal. .
[0014]
    New snow amount of this inventionBy workThe alarm system uses the new snow amount alarm device of the present invention in combination with the new snow detector capable of measuring the new snow amount to automatically observe the new snow amount at a predetermined time and when the set new snow amount is reached. Or, it must be structured so as to automatically issue a warning when the set amount of new snow is exceeded.
    A new snow amount detector emits a substantially horizontal infrared ray or laser beam for each predetermined height, receives each light with a sensor, and detects the height at which the light is blocked by the new snow as a new snow amount. It is possible to measure the amount of fresh snow that falls on a predetermined area with a weigh scale to obtain the amount of snow, etc., but in consideration of measurement accuracy, equipment price, workability during transportation and installation, etc. It can be said that it is desirable to use what measures the amount of new snow.
[0015]
    In addition, the new snow amount alarm device is provided with an output line for an external buzzer that can output the same control signal as the alarm buzzer, and an observer who takes a nap in a waiting room away from the location of the new snow amount alarm device In addition to being able to issue alarms to snow removal workers, etc., the outer shape of each of the new snow amount detector and the new snow amount alarm device is set within a dimension of about 1 cubic meter. Therefore, it is desirable that it be formed so that even a small number of people can be transported and installed relatively easily.
    In the following, the structure of the present invention will be described in detail together with an embodiment representative of the present invention shown in the drawings.
[0016]
[Example 1]
    New snow amount in Fig. 1By workSchematic front view of the alarm system and the amount of fresh snow in Figure 2By workThe example shown in the conceptual block diagram of the alarm system includes a new snow amount detector that can detect the amount of new snow using ultrasonic waves, sequentially displays the amount of new snow detected by the new snow amount detector, and an alarm. Connected to a new snow amount display alarm setting unit that can set and input the set low fresh snow amount and the set high fresh snow amount as appropriate, and an alarm unit consisting of a low alarm lamp, high alarm lamp, alarm buzzer, etc. When the detection signal from the new snow amount detector is received at each set time, the low alarm lamp blinks when the detected value exceeds the set low fresh snow amount, and the detected value exceeds the set high fresh snow amount In addition, the amount of new snow is equipped with a new snow amount alarm device that has a control unit that enables automatic control to sound the alarm buzzer at the same time as flashing the high level alarm lampBy work1 shows an exemplary embodiment of a warning system having a basic structure.
[0017]
    The new snow amount detector 2 is provided with a column 22 having a height of about 900 mm in the middle of the vicinity of the edge in the depth direction of the rectangular flat measurement base 21 having a width of about 300 mm and a depth of about 700 mm. The upper end side is connected to the base end side of the rod-like arm 23 having a length of about 500 mm so that the vertical movement can be adjusted, and the arm 23 is supported horizontally. The ultrasonic detector unit 24 is mounted and fixed so as to be slidable and adjustable along the arm 23, and is lifted and supported at a predetermined height position.
[0018]
    The ultrasonic detector unit 24 oscillates an ultrasonic wave vertically downward, and is set so that the oscillated ultrasonic wave reaches near the center of the measurement base 21. The arrival speed of the echoes generated in is measured and output as a detection signal.
[0019]
    The new snow amount alarm device 3 is provided with a new snow amount display unit 4, a new snow amount setting unit 5, an alarm unit 7 and a control unit 8 in a box-shaped main body 31, and a micro that forms the main part of the control unit 8. The sequencer 8 is provided with an interface (not shown), and a part of the output circuit is exposed to the outside of the main body 31 and the measurement cable 25 extended from the ultrasonic detector 24 of the new snow amount detector 2. A connection terminal (not shown) that can be connected is formed, a detection trigger signal of the new snow amount detector 2 is transmitted a plurality of times at a predetermined time, and a detection signal that the new snow amount detector 2 detects and outputs in response to this is detected. The new snow amount display unit 4 receives and sequentially detects the detected value of the new snow amount.
[0020]
    In addition, an alarm lamp 71 including a low level alarm lamp 72 and a high level alarm lamp 73 forming an alarm unit 7 and an alarm buzzer 74 can be individually controlled in the other part of the output circuit of the microsequencer 8. The low level alarm lamp 72 is connected to the state, and is a green LED (light emitting diode) provided in an exposed manner on the front surface of the main body 31, and is set to flash when receiving an output signal from the microsequencer 8. Similarly, the high level alarm lamp 73 is a red LED provided so as to be exposed at an appropriate position adjacent to the low level alarm lamp 72 on the front surface of the main body 31. The high level alarm lamp 73 flashes in response to an output signal from the microsequencer 8. Yes. The alarm buzzer 74 is a speaker installed at an appropriate position on the front surface of the main body 31, and receives an output signal from the microsequencer 8 and emits an alarm sound that is intermittently synchronized with the flashing of the alarm lamp 71. In addition, the warning sound can be stopped when the user presses a buzzer stop button 75 provided at an appropriate adjacent position.
[0021]
    Further, in the main body 31 of the new snow amount alarm device 3, an input / output circuit connected to a connection terminal to which the measurement cable 25 of the new snow amount detector 2 is connected and another part of the input circuit of the microsequencer 8 are connected. The new snow amount display unit 4 and the new snow amount setting unit 5 are integrally provided, and the new snow amount display setting panel 51 is exposed on the front surface of the main body 31.
[0022]
    The new snow amount display unit 4 receives the detection signal from the measurement cable 25 of the new snow amount detector 2 a plurality of times in one measurement, and averages the measured values that are approximated by excluding the measured values including large errors. At the same time, the new snow amount is calculated by appropriately calculating the detected value, and the new snow amount is sequentially displayed at an appropriate position on the new snow amount display setting panel 51. Therefore, the new snow amount display unit 4 It is assumed that a part of the function of the control unit 8 for calculating the new snow detection value is performed.
[0023]
    The new snow amount setting unit 5 allows the user to individually input a low fresh snow amount and a high fresh snow amount to issue an alarm by operating an input button (not shown) provided on the new snow amount display setting panel 51 by a user. The low and high fresh snow amounts that have been set and input are displayed adjacent to each other in the proximity of the new snow amount that is easily compared with the fresh snow amount as the measurement result that is sequentially displayed by the new snow amount display setting unit 51. The low new snow amount set for the microsequencer 8 when the new snow amount calculated by the new snow amount display unit 4 exceeds the low fresh snow amount and when the new snow amount exceeds the high fresh snow amount, respectively. And a signal notifying that the set high fresh snow amount has been exceeded, respectively.
[0024]
    When the microsequencer 8 receives a signal notifying that the low new snow amount has been exceeded from the new snow amount setting unit 5, the low alarm lamp “GL” 72 blinks and emits light, and the new snow amount to be sequentially measured is low low fresh snow. It is to be continued and maintained until it becomes less than the amount. Further, when a signal notifying that the high new snow amount has been exceeded is transmitted from the new snow amount setting unit 5, the high alarm lamp “RL” 73 flashes and emits light, and at the same time, the alarm buzzer 74 is intermittently sounded, Is maintained and maintained until the amount of new snow falls below the high level of fresh snow.
[0025]
    Further, a part of the output circuit of the microsequencer 8 is provided with an output terminal (not shown) for an external buzzer that is exposed at an appropriate position of the main body 31 and can be connected to the external buzzer 76. It has become. Further, a power switch 9 for activation is provided at an appropriate position on the front surface of the main body 31 of the new snow amount alarm device 3, and a power cable 91 is led out from the rear side of the main body 31 so that the work-specific alarm system 1 based on the new snow amount is provided. AC power to start up is to be obtained.
[0026]
[Example 2]
    Schematic front view of the work-specific alarm system based on the amount of new snow in FIG. 3, and the amount of new snow in FIG.By workThe example shown in the conceptual block diagram of the alarm system is the amount of new snow using the new snow amount alarm device of the present invention.By workAnother embodiment included in the alarm system is shown, and a new snow amount recording unit 6 is added to the new snow amount alarm device 3 in the work-by-work alarm system 1 according to the new snow amount shown in the first embodiment. The new snow amount data for each measurement time from the start of the amount measurement to the end of the measurement can be sequentially recorded and stored.
[0027]
    Since the basic configuration of the new snow amount detector 2 and the new snow amount alarm device 3 is substantially the same as that of the work-specific alarm system 1 according to the new snow amount shown in the first embodiment, a newly added new snow amount recording unit 6 is provided. The new snow amount recording unit (recording meter in FIG. 4) 6 is provided in the box-shaped main body 31 of the new snow amount alarm device 3 and the new snow amount output from the new snow amount display unit 4 is stored in the main body 31. A new snow amount is displayed on the new snow amount recording display panel 61 provided at a suitable position in front of the vehicle, and a start signal is transmitted to the new snow amount detector 2 every minute, for example, to detect the new snow amount from the new snow amount detector 2. Each time a signal is received, calculation processing is performed, and a liquid-crystal display panel, a cathode ray tube, or a roll-shaped recording paper is sent in the direction of elapsed time provided at the appropriate position below the new snow amount recording display panel 61, and printed. Records and tables displayed with a pen The change in the fresh snow amount with respect to the elapsed time by the vessel, fresh snow amount on the horizontal axis, which is intended to analog display by point or line on a graph showing the elapsed time on the vertical axis.
[0028]
    The new snow amount recording section 6 can be output as new snow amount data entered on a recording sheet, and stores the detected new snow data in a recording device such as a hard disk or a semiconductor memory provided integrally. Or can be output to a connected external personal computer, floppy disk, or other recording medium for recording and storage.
[0029]
    Further, the work-specific alarm system 1 based on the amount of new snow does not include the new snow amount display unit 4 or the new snow amount setting unit 5 as shown in the block diagram of the other work-specific alarm system based on the new snow amount in FIG. The microsequencer 8 that forms the function also receives functions such as reception of a new snow amount detection signal from the new snow amount detector 2 and input of the setting of the alarm new snow amount. In this case, the program software of the micro sequencer 8 needs to be changed when changing the setting of the alarm fresh snow amount. In addition, the amount of new snow detected sequentially is checked by looking at the recorder of the new snow amount recording unit 6.
[0030]
[Effects of the Invention]
    New snow amount using the new snow amount alarm device 3 of the present invention configured as described aboveBy workThe alarm system 1 is basically controlled as shown in the flowchart of the alarm operation of the new snow amount alarm device in FIG.
    Fresh snowBy workAs shown in FIG. 1, the alarm system 1 avoids peculiar points of snow accumulation conditions such as snow accumulation points, blow-off points, places where snow blocks fall, etc. A new snow amount detector 2 is fixedly installed at a suitable outdoor location where the amount of snow falls, and the measurement cable 25 is pulled into the indoor space where the new snow amount alarm device 3 is installed and connected to the new snow amount alarm device 3 After that, when the observer activates the power switch 9, the micro sequencer 8 which is the control unit of the new snow amount alarm device 3 is activated, and the execution of the control program is started.
[0031]
    When the microsequencer 8 is activated, first, it is necessary to input a setting to the new snow amount setting unit 5 by an observer, and when each of the low alarm new snow amount and the high alarm new snow amount is input via the new snow amount display setting panel 51, Automatically starts observation based on. As indicated by “a” in FIG. 6, based on a timer built in the microsequencer 8, it is set in the control program in advance or waits for the elapse of time appropriately set by the observer at the time of activation. For example, when starting at 8:10 pm, it is possible to control to measure the amount of fresh snow at set time intervals based on the starting time, such as measuring every 15 minutes based on the starting time. In addition, even if it is started at 8:10 pm, the measurement is performed at 8:15 pm and then at 8:30 pm. Control may be made so that the amount of fresh snow is measured at each time interval.
[0032]
    When the set time comes, the microsequencer 8 transmits a start signal to the new snow amount detector 2 a plurality of times, and the ultrasonic detection of the new snow amount detector 2 that has received this signal, as shown in FIG. The container unit 24 oscillates the ultrasonic wave vertically downward as indicated by a broken line arrow in FIG. 1 each time. If there is no snow at this time, the ultrasonic detector unit 24 receives the ultrasonic wave reflected on the upper surface of the measurement base 21, and a detection signal of zero new snow amount is given several times, and a new snow amount alarm is generated. Is transmitted to the device 3.
[0033]
    New snow amount detector 2 The new snow amount display unit 4 that has received the detection signal from the ultrasonic detector unit 24 averages only the measured values that are approximated by eliminating the measurement including a large measurement error, and appropriately calculates the detected value. By processing, the new snow amount is automatically calculated, and a numerical value of “0” mm is displayed as the current new snow amount at an appropriate position on the new snow amount display setting panel 51 as indicated by c in FIG.
[0034]
    Subsequently, the microsequencer 8 that has received the new snow amount through the new snow amount display unit 4 determines whether or not the accumulated new snow amount has exceeded the low alarm new snow amount, as indicated by d in FIG. Is “0” mm, it is judged as “No”, and further, as shown by e in the figure, it is judged whether or not the amount of high-level warning fresh snow has been exceeded. Similarly, No is selected and again indicated by a. Then, the next measurement time is awaited.
[0035]
    When the next measurement time comes, the same measurement as described above will be executed again. At that time, when there is snow up to the height (new snow amount) H indicated by the two-dot chain line in FIG. The display unit 4 displays the new snow amount H at an appropriate position of the new snow amount display setting panel 51 according to c in FIG. 6, and the microsequencer 8 executes d in the figure, and the new snow amount H is the low alarm new snow amount. If it exceeds the upper limit, “Yes” is judged and the low alarm lamp “GL” 72 blinks and emits light as shown by f in the figure, and then e in the figure is executed to obtain the amount of new snow. If H does not exceed the high warning new snow amount, “No” is selected and “a” waiting for the next set time is executed. If the new snow amount H exceeds the high warning new snow amount, In this case, select “Yes” and turn on the high alarm lamp “RL” 73 as shown in FIG. Dark, and at the same time emit light, and controls to emit intermittently alarm sound an alarm buzzer 74 and an external buzzer 76 as shown in h in the figure by operating "ON".
[0036]
    The alarm buzzer 74 and the external buzzer 76 can be stopped by the observer operating the buzzer stop button 75 in FIG. 1, and the detected new snow amount H is higher than the higher alarm new snow amount due to melting of snow or the like. When the number of the low-level alarm lamps has decreased, the high-level alarm lamp 73, the alarm buzzer 74, and the external buzzer 76 are automatically stopped. The light emission is automatically stopped.
[0037]
    New snow amount shown in Fig. 3By workThe alarm system 1 has the above-mentioned amount of fresh snow shown in FIG.By workSince it is configured to be automatically controlled in substantially the same manner as the alarm system 1, when only the control of the newly added snow amount recording unit 6 is shown, the new snow amount recording unit 6 outputs the new snow amount display unit 4. The new snow amount signal to be displayed is digitally displayed on the new snow amount recording display panel 61, and further, for example, the new snow amount detection signal output from the new snow amount detector 2 is calculated every minute, and the new snow amount recording display panel 61 is processed. In the graph, the horizontal axis represents the amount of fresh snow, and the vertical axis represents the elapsed time.
[0038]
    New snow amount shown in Fig. 5By workSince the alarm system 1 is not provided with a new snow amount display unit and a new snow amount setting unit, when the observer wants to know the current new snow amount, the new snow amount recording unit (recorder in FIG. 5) 6 The measurement value sequentially displayed on a new snow amount recording display panel (not shown) is read. Moreover, since the setting of the alarm new snow amount is set in advance by the control program of the microsequencer 8 in the figure, it is not necessary to input by the observer, and if the power switch is operated, the new snow amount is observed. When changing the alarm fresh snow amount, change the control program or set the storage medium such as a semiconductor memory that stores the control program to the desired alarm fresh snow amount. Need to be replaced.
[0039]
【The invention's effect】
    As described above, according to the new snow amount alarm device of the present invention, first of all, by providing a new snow amount setting unit, the observer can freely input and set any new snow amount that requires an alarm. It becomes possible to make changes, and it is possible to set the amount of new snow warning according to various conditions such as the difference in weather conditions depending on the region and its topography, the conditions of snow removal work, etc. If a low alarm lamp and a high alarm lamp are provided, if the low alarm lamp emits light, light snow removal work is sufficient, and the high alarm lamp emits light. It is possible to judge that it is necessary to dispatch a snow removal machine with higher capacity, especially for workers who perform snow removal at night, so that they can sleep without worry until they are dispatched. Since the amount of new snow can be grasped and judged, the snow removal work can be dispatched accurately and efficiently, and the work load on snow removal workers can be greatly reduced. Features can be obtained.
[0040]
    Also, the amount of new snow of the present inventionBy workAccording to the alarm system, the new snow amount detector installed outdoors is configured to measure the amount of fresh snow that falls on the measurement base in an ultrasonic manner with a detector that is fixed and supported above it. In addition to being able to be relatively small, the measurement base and detector can be moved and installed relatively easily by work with a small number of people, with the measurement base and detector integrated. The installation location can be easily changed according to changes in the environment, etc., and conditions for observing the correct amount of new snow can be easily prepared. In addition, a new snow amount alarm installed indoors By providing a new snow amount display unit and a new snow amount recording unit, the latest new snow amount can be easily grasped indoors even if no alarm is issued, increasing the reliability of new snow amount observation. Snow removal worker, can exert a Xiu the effect that with peace of mind until the dispatch time will be able to take a sleep.
[0041]
    In particular, the amount of fresh snow described in Example 1By workIn addition to the features described above, the alarm system 1 is provided with a microsequencer 8 as a control unit of the new snow amount alarm device 3 and has a structure in which the new snow amount display unit 4 and the new snow amount setting unit 5 are combined. The control program can be executed by a simple component configuration, and the low alarm lamp “GL” 72 and the high alarm lamp “RL” 73 are formed of LEDs, so that the power consumption can be kept low. By providing the new snow amount recording unit 6 as in the work-specific alarm system 1 based on the amount of new snow 2, it is possible to grasp the change in the amount of new snow from the start to the end of the measurement. Sometimes, taking into account the change in the amount of new snow for each elapsed time and weather information so far, the amount of new snow in the future will be predicted to some extent and preparation for snow removal depending on the situation It becomes possible to start at an early stage, to exert an effect that will be able to more accurate situation assessment.
[0042]
    As stated, the amount of fresh snow of this inventionBy workThe alarm system has a new configuration that makes it possible to achieve the intended purpose and is relatively easy to manufacture. Compared to the conventional large-scale automatic snow depth gauge with alarm, the alarm system is far more economical. In addition, it is relatively small and can greatly improve the workability of movement and installation, reducing power consumption and achieving cost reductions, and the amount of warning fresh snow It can be changed and set freely, and it can be widely handled by simple setting operations even in areas with different snow removal work conditions such as mountainous areas, plain areas, urban areas, etc., and it is accurate and quick regardless of day or night It is highly evaluated by road managers, railway officials, and airport managers who are required to ensure safety through snow removal work, and is expected to be widely used and spread.
[Brief description of the drawings]
    The drawing shows the amount of fresh snow of this inventionBy workSeveral typical embodiments embodying the technical idea of the alarm system are shown.
[Figure 1] New snow volumeBy workIt is a front view which shows the basic structure of an alarm system.
[Figure 2] Fresh snowBy workIt is a block diagram which shows the basic structure of an alarm device.
[Figure 3] New snow amount with some changesBy workIt is a front view which shows the structure of an alarm system.
FIG. 4 is a block diagram showing the structure of a new snow amount alarm device with some changes.
FIG. 5 is a block diagram showing a new snow amount alarm device included in the present invention.
FIG. 6 is a flowchart showing a basic alarm operation of a new snow amount alarm device.
[Explanation of symbols]
        1 amount of fresh snowBy workAlarm system
        2 New snow detector
          21 Same measurement base
          22 The same prop
          23 Same arm
          24 Ultrasonic detector
          25 Same measurement cable
        3 new snow amount alarm
          31 Box body
        4 New snow display
        5 New snow amount setting part
          51 Same snow display setting panel (new snow display setting section)
        6 New snow amount recording part
          61 Same snow record display panel
        7 Alarm unit
          71 Same alarm lamp
          72 Same as above Low warning lamp (GL)
          73 Same high alarm lamp (RL)
          74 Same alarm buzzer
          75 Same buzzer stop button
          76 Same external buzzer
        8 Microsequencer (control unit)
        9 Power switch
          91 Same power cable
        H New snow amount (height)

Claims (1)

A horizontal flat measurement base and a plurality of echoes from fresh snow that are fixedly supported at a predetermined height on the measurement base, oscillate ultrasonic waves toward the upper surface of the measurement base, and fall on the upper surface of the measurement base. A new snow amount detector comprising a detector capable of detecting the average amount of new snow by detecting the number of times, and receiving a detection signal output from the new snow amount detector, the new snow amount can be sequentially displayed externally. As the amount of new snow that triggers a warning, light snow removal work can be done in the amount of new snow determined according to various conditions such as differences in weather conditions depending on the region and topography, conditions of snow removal work, etc. A new snow amount display setting unit and a new snow amount detector that can be set and input as appropriate to the low fresh snow amount that can be used and the high fresh snow amount that needs to be driven by a high-capacity snow removal machine . The amount of fresh snow received from And digital or analog information the recordable fresh snow amount recording unit provided, and the low-level alarm lamp exposed to the outside, the high warning lamp and becomes an alarm unit and a warning buzzer and respectively connected, preset time each Or when a detection signal from the new snow amount detector is received at an appropriately set time and the detected value reaches or exceeds the lower fresh snow amount preset in the new snow amount display setting unit. The low level alarm lamp is lit or flashed to encourage light snow removal work, and when the preset high level of fresh snow is reached or exceeded, the high level alarm lamp is lit or flashed and an alarm buzzer is turned on. an automatic control possible with the control unit to prompt to enter poised to dispatch a high snow removal machine capable sounded, and similar control signals and alarm buzzer Work by the alarm system by new snow amount, characterized by comprising providing the output enable and the fresh snow amount alarm device was set to have an output line for external buzzer.

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