JPH08122463A - Stopwatch and time counting system - Google Patents

Abstract

PURPOSE: To obtain a stopwatch and a time counting system which enable a driver to measure solely a lap time of a plurality of laps and a section running time. CONSTITUTION: A stopwatch and time counting system are constituted of a magnetic sensor 2 which senses magnetism and generates a signal when the magnetism of a prescribed amount or above is sensed, a time counting part 1 whereby start and end of time count are controlled every time when the signal from the magnetic sensor 2 is received, and wherein the time counted is stored, and a display part 3 which displays the time stored in the time counting part 1. The magnetic sensor 2 is mounted on a vehicle and connected with the time counting part 1 by a cable and the time counting part 1 and the display part 3 are formed integrally. A member generating magnetism is installed on a course of running of the vehicle.

Description

Detailed Description of the Invention

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a stopwatch and a timekeeping system, and more particularly to a stopwatch which is mounted on a vehicle and can measure a circuit lap time etc. independently for each vehicle, and a timekeeping system using the stopwatch.

[0002]

2. Description of the Related Art Conventionally, a system for measuring a lap time or the like of a car on a circuit is installed in a circuit 60 as shown in FIG. 6 and blocks light from a pair of transmitters / receivers to prevent the cars 61 and 62 from passing through. Sensor 71 to detect
And a control unit 72 that receives a signal from the sensor 71 by cable or wirelessly, measures and displays the time. The control unit 72 starts measuring the time from the sensor 71 or by a manual start signal, and each time the cars 61 and 62 pass the sensor 71, the control unit 72 measures and displays the lap time.

When the time is measured for each car without using the system shown in FIG. 6, a person other than the driver uses a manual stopwatch to start / start the vehicle.
The lap time is measured at the goal point.

Further, various methods have been proposed in order to accurately measure time even in ski competitions, and Japanese Patent Application No. 4-43444 discloses an opening / closing operation when a magnetism of a predetermined amount or more is detected. When changing the operation mode according to the switch to be operated and the operation of the switch, and when the next switch is operated while continuing the timekeeping, the timekeeping is ended and the timekeeping is stopped and the time kept is kept. When the next switch is activated in, the time is reset and the value is retained,
A stopwatch provided with a timekeeping section for starting timekeeping when the next switch is actuated while keeping the timekeeping time at zero, and a display section for displaying the time measured by the timekeeping section, and the stopwatch Is disclosed, and a timing system is disclosed in which magnets which are sensed by the switch are arranged at the start and finish positions.

[0005]

In the conventional timekeeping system shown in FIG. 6, the sensor and the control unit need to be connected by a cable or wireless, and installation of these cables or wireless transceivers is costly. And time is needed. Further, in order to inform the driver of the vehicle of the measured time, the vehicle must be stopped or another communication system is required. Furthermore, when measuring the lap time of a plurality of cars and the section traveling time which is the time to pass through a part of the course, the operation and operation of the control unit becomes complicated,
A dedicated operator is required.

When a person other than the driver manually measures the time with a stopwatch, it is difficult to measure the section running time other than the lap time, and the accuracy of the measured time is sufficient because it is manual. is not.

Further, in the stopwatch and the system using the stopwatch disclosed in Japanese Patent Application No. 4-43444, it is possible for the driver to measure the lap time independently, but the lap time for a plurality of laps. In addition, it is impossible to measure the traveling time of the section or the section, and the reliability of the switch is inferior in terms of the followability to the passage of a vehicle traveling at a high speed because of the operation speed of the switch.

The present invention has been made to solve the above problems, and an object of the present invention is to provide a stopwatch and a timekeeping system which allow a driver to independently measure a lap time and a section traveling time of a plurality of laps. And

[0009]

According to the present invention, the above-mentioned object is to provide a magnetic sensor which generates a signal when a magnetism of a predetermined amount or more is sensed, and which receives the signal and starts timing by the signal. The stopwatch according to claim 1, further comprising: a timekeeping means for controlling the end of the time, a storage means for storing the timed time, and a display means for displaying the stored time.

According to the invention, the above object is characterized in that the magnetic sensor comprises a Hall element.
Achieved by the stopwatch of.

According to the present invention, the above-mentioned object is to provide a magnetic sensor which generates a signal when a magnetism of a predetermined amount or more is sensed, and a timekeeping which receives the signal and controls start and end of the timekeeping by the signal. A stopwatch including a unit, a storage unit that stores the time measured, and a display unit that displays the stored time is attached to the vehicle, and a member that generates magnetism is provided on the course on which the vehicle runs. This is achieved by the clocking system according to claim 3.

According to the invention, according to the above object, the magnetic sensor comprises a Hall element.
It is achieved by the timekeeping system.

According to the present invention, the aforementioned object is achieved by a timekeeping system according to claim 5, wherein the member for generating magnetism is a magnetic bar made of a magnet.

According to the present invention, the aforementioned object is achieved by a timekeeping system according to claim 6, characterized in that magnetic bars are provided at a plurality of points on the course to measure a section running time and a lap time. .

[0015]

In the stopwatch according to claim 1, a signal is generated when the magnetic sensor detects a magnetism of a predetermined amount or more, the start and end of the time is controlled by the reception of the signal by the time measuring means, and the storage means is used. By storing the measured time, the driver can independently measure the lap time and the section traveling time of a plurality of laps.

In the stopwatch according to claim 2,
Since the magnetic sensor includes the Hall element, it is possible to accurately sense a predetermined amount of magnetism or more even when a vehicle equipped with the magnetic sensor travels at high speed.

In the timekeeping system of the third aspect, a member for generating magnetism is provided on the course on which the vehicle travels, and a signal is generated when a magnetic sensor mounted on the vehicle senses a predetermined amount or more of magnetism. The start and end of time counting are controlled by receiving the signal by the time measuring means, and the time measured is stored by the storage means, so that the driver can independently measure the lap time and the section traveling time of a plurality of laps.

In the timekeeping system of the fourth aspect, since the magnetic sensor comprises the Hall element, the magnetism from the member that generates magnetism can be accurately sensed even when a vehicle equipped with the magnetic sensor travels at high speed. .

In the timekeeping system of the fifth aspect, since the member for generating magnetism is the magnetic bar made of a magnet, the mounting position of the magnetic sensor and the method for installing the member for generating magnetism can be provided in various forms. .

In the timekeeping system according to the sixth aspect of the invention, since the magnetic bars are provided at a plurality of places on the course, the section running time and the lap time can be measured by the stopwatch.

[0021]

Embodiments of the stopwatch of the present invention will be described below with reference to the drawings.

As shown in FIG. 1, the stopwatch of the present invention includes a magnetic sensor 2 for generating a constant signal when magnetism is detected and a predetermined amount or more of magnetism, and a signal generated by the magnetic sensor 2. From a timekeeping section 1 having means for controlling the start and end of timekeeping each time a signal is received and a means for storing the measured time, and a display section 3 for displaying the time stored in the timekeeping section 1. It is configured. The magnetic sensor 2 and the timer 1 are connected by a cable,
The clock unit 1 and the display unit 3 are integrally formed.

The magnetic sensor 2 has an appearance as shown in FIG. 2 (a), and is mechanically attached to the lower surface of the automobile by means of screws, bolts, nuts or the like. Since it is mounted outside the vehicle, it has an earthquake-proof structure and is completely waterproof. As shown in FIG. 2B, the structure is such that a substrate 21 having a Hall element 22 that senses magnetism is mounted in a case 20 by using an epoxy resin 2
The signal generated by the Hall element 22, which is fixed by 3, is sent to the timer section 1 through the cable 24. In this embodiment, the board 21 on which the Hall element 22 is mounted is fixed to the lower surface side, but the direction sensed by the sensor can be changed by changing the position and the direction of fixing the board 21.

As shown in FIG. 3, the timer unit 1 and the display unit 3 are a liquid crystal display unit 31 for displaying the measured and stored time and the number of laps, a power switch 32 for turning the power on and off, and a magnetic sensor. A start / stop switch 33 for alternately enabling / disabling the signal from the memory call switch 34, a memory call switch 34 for sequentially calling each measurement time, and an indicator 35 that blinks for a certain time when the signal from the magnetic sensor 2 is received. It is possible to store the measured time up to 99 times.

The operation of this embodiment will be described below with reference to the drawings. In the present embodiment, it is assumed that a member that generates magnetism is installed at one place (start / goal position) of a course on which a car equipped with a stopwatch runs.

The power switch 32 turns on the power, and the start / stop switch 33 enables the signal from the magnetic sensor 2. First, when the magnetic sensor 2 senses magnetism, the indicator 35 blinks for a certain period of time to start measuring time. When the magnetic sensor 2 senses magnetism for the second time, the indicator 35 also blinks for a certain time in the same manner, and the time elapsed after first sensing magnetism is measured and stored by the timer unit 1, and the liquid crystal display unit 31 displays it. The number of laps 1 and the time elapsed since the magnetism was first sensed, which is stored in the timer unit 1, are displayed. When the magnetic sensor 2 senses magnetism for the third time, the indicator 35 also blinks for a certain time in the same manner, and the time elapsed from the second time magnetism is sensed by the timer unit 1 is stored and stored in the liquid crystal display unit 31. Shows the number of laps 2 and the time that has elapsed since the second time the magnetism was stored, which was stored in the timer unit 1. In this way, the desired number of lap times are sequentially measured and stored.

By continuously pressing the start / stop switch 33 for a certain period of time, the time measurement is finished and the total accumulated time up to the previous lap is displayed on the liquid crystal display section 31.
Although the last measured lap time is displayed on the display unit 3, when calling each lap time, by pressing the memory call switch 34 in this state, each lap time from the lap number 1 to the measured lap time is lapped. The number and the number are sequentially displayed on the liquid crystal display unit 31. Further, in this state, if the memory call switch 34 and the start / stop switch 33 are continuously pressed for a certain period of time, the entire lap time stored in the timer unit 1 is cleared. If you want to measure the time again after clearing all the lap times, start the operation after turning on the power. When the start / stop switch 33 is pressed again without clearing the stored lap time, the time measurement is started again. In addition, in order to prevent wasteful consumption of power, in this embodiment, the power is automatically turned off when no operation is performed for 30 minutes or more after the time measurement is completed.

An embodiment of the clocking system of the present invention will be described below with reference to the drawings.

In the timing system of the present invention, as shown in FIG. 4, magnetic bars 50 to 52 made of magnets are installed at three locations of the circuit 40 as members for generating magnetism.
Each of the cars 41 and 42 traveling on the circuit 40 is equipped with the stopwatch described in the embodiment of the stopwatch of the present invention. The structure and operation of the stopwatch are the same as those in the above-mentioned embodiment, and therefore their explanation is omitted.

When the magnetic sensor 2 shown in FIG. 2 is mounted on the lower surface of the vehicle, the magnetic bars 50 to 52 are installed on the paved road surface of the circuit 40 as shown in FIG. 5 (a). Although it is preferable to embed the magnetic sensor 2 in the lower part, when the magnetic sensor 2 is mounted on a place other than the lower surface of the car, the circuit 40 of the circuit 40 is adjusted as shown in FIG. It may be installed on the side of the course, or a gate-shaped magnetic bar may be installed as shown in FIG.

The drivers of the cars 41 and 42 operate the stopwatches in the order described in the stopwatch embodiment above to produce magnetic bars 50 and 51, respectively.
The section running time, the section running time between the magnetic bars 51 and 52, and the section running time between the magnetic bars 52 and 50 are measured and displayed by the respective stopwatches. In this case, the lap time of each lap, which is the integrated time, is displayed by pressing the start / stop switch 33 for a fixed time for each lap.

In both of the above-described embodiments, the stopwatch has a configuration in which the magnetic sensor 2 and the timekeeping unit 1 are connected by a cable, and the timekeeping unit 1 and the display unit 3 are integrated. The configuration in which the timekeeping unit 1 and the magnetic sensor 2 are integrally configured and each of them may be separate. Further, a wireless transmission unit or a wireless reception unit may be provided in a separate portion to connect the respective units wirelessly.

In order to notify not only the driver but also the person in the pit of the measured time from the above various structural examples, the timekeeping section and the display section are separately provided, and the connection between them is performed wirelessly, and the display section is connected to the inside of the vehicle. A configuration or the like provided at two locations outside the vehicle may be considered. Compared to the case of connecting with a cable, the structure of connecting using wireless in this way improves the reliability of the connection because there is no disconnection, but it corresponds to the case where multiple cars travel on the course. It is necessary to provide an additional configuration such that a plurality of channels are provided to use different channels for each car, or an identification signal is sent on the transmitting side and selected on the receiving side.

Further, in the present embodiment, the description has been limited to the automobile and the circuit, but the invention can be similarly applied to a motorcycle, a bicycle or the like traveling on a closed course.

[0035]

According to the stopwatch of claim 1,
The driver can independently measure the lap time and section running time of multiple laps.

According to the stopwatch of the second aspect, even when a vehicle equipped with a magnetic sensor or the like travels at high speed, it is possible to accurately sense a predetermined amount of magnetism or more.

According to the timekeeping system of the third aspect, the driver can independently measure the lap time and the section traveling time of a plurality of laps.

According to the timekeeping system of the fourth aspect, even when the vehicle equipped with the magnetic sensor travels at high speed, it is possible to accurately sense the magnetism generated from the member that generates magnetism.

According to the timekeeping system of the fifth aspect, it is possible to provide the mounting position of the magnetic sensor and the method of installing the member that generates magnetism in various forms.

According to the timekeeping system of the sixth aspect, the stopwatch can measure the section traveling time and the lap time.

[Brief description of drawings]

FIG. 1 is a block diagram showing a configuration of a stopwatch of the present invention.

FIG. 2 is a diagram showing an embodiment of the magnetic sensor of FIG.

FIG. 3 is a diagram showing an embodiment of a clock unit and a display unit of FIG.

FIG. 4 is an explanatory diagram of an embodiment of the timing system of the present invention.

5 shows an embodiment of a magnetic bar of the system of FIG.

FIG. 5 is an explanatory diagram of a conventional timing system.

[Explanation of symbols]

 1 magnetic sensor 2 timing part 3 display part 20 case 21 substrate 22 hall element 23 resin 24 cable 31 liquid crystal display part 32 power switch 33 start / stop switch 34 memory call switch 35 indicator 40, 60 circuit 41, 42, 61, 62 vehicles 50-52 magnetic bar 71 sensor 72 control unit

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[Procedure amendment]

[Submission date] February 24, 1995

[Procedure Amendment 1]

[Document name to be amended] Statement

[Name of item to be corrected] Brief description of the drawing

[Correction method] Change

[Correction content]

[Brief description of drawings]

FIG. 1 is a block diagram showing a configuration of a stopwatch of the present invention.

2 is a diagram showing an embodiment of the magnetic sensor of FIG. 1. FIG.

FIG. 3 is a diagram showing an embodiment of a clock unit and a display unit of FIG.

FIG. 4 is an explanatory diagram of an embodiment of the timing system of the present invention.

5 shows an example of a magnetic bar of the system of FIG.

FIG. 6 is an explanatory diagram of a conventional timing system.

[Explanation of reference numerals] 1 magnetic sensor 2 timing unit 3 display unit 20 case 21 substrate 22 Hall element 23 resin 24 cable 31 liquid crystal display unit 32 power switch 33 start / stop switch 34 memory call switch 35 indicator 40, 60 circuit 41, 42 , 61, 62 vehicles 50-52 magnetic bar 71 sensor 72 control unit

Claims (6)

[Claims] 1. A magnetic sensor for generating a signal when a magnetism of a predetermined amount or more is sensed, timing means for receiving the signal and controlling the start and end of the timing, and storing the time measured. A stopwatch, comprising: a storage unit that stores the stored time; and a display unit that displays the stored time. 2. The stopwatch according to claim 1, wherein the magnetic sensor comprises a Hall element. 3. A magnetic sensor for generating a signal when a magnetism of a predetermined amount or more is sensed, timing means for receiving the signal and controlling start and end of the timing by the signal, and storing the time measured. A timekeeping system comprising: a stopwatch provided with a storage unit for storing the stored time and a display unit for displaying the stored time, and a member that generates magnetism is provided on a course on which the vehicle travels. 4. The timekeeping system according to claim 3, wherein the magnetic sensor comprises a Hall element. 5. The timekeeping system according to claim 3, wherein the member for generating magnetism is a magnetic bar made of a magnet. 6. The timekeeping system according to claim 5, wherein magnetic bars are provided at a plurality of points on the course in order to measure the section running time and the lap time.