JP2000099868A - Impact recorder - Google Patents

Abstract

PROBLEM TO BE SOLVED: To provide an impact recorder capable of reading records stored in the impact recorder without detaching the impact recorder or taking out the impact recorder from a package, and starting the next recording by deleting the recording contents in the impact recorder, thereby entirely recording accelerations for a long time even with a small amount of recording capacity and easily reading them. SOLUTION: This impact recorder to measure and record the acceleration to be received by various operation of articles is provided with a function to detect the added acceleration and a function to record the detected acceleration and transmission of recorded data is performed by radio communication. An impact recorder main body 21 is provided with a transmitting and receiving function and an IF part 23 is connected with a person computer 22. A reception part, a transmission part, a reception coil, a transmission coil are incorporated in the IF part 23 as in the case of the impact recorder main body 21.

Description

DETAILED DESCRIPTION OF THE INVENTION

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to an impact recorder for measuring and recording an acceleration applied to an article by various operations.

[0002]

2. Description of the Related Art When an article is handled or transported, the article may be damaged by an impact due to a drop, collision, or bounce. When damaged, it is necessary to clarify at what point of impact, such as during handling and transportation, the damage. Since an item is subject to acceleration when subjected to an impact, measuring and recording the acceleration in chronological order makes it clear at which point of impact during handling and transport, it is possible to grasp the cause of damage. it can. Such an impact recorder (acceleration recorder) is used by being attached to an article, receiving the same handling and transportation as the article, measuring the generated acceleration, recording, handling, transporting, and then storing it in the impact recorder. Read the stored records to determine the impact that the item may have received. Therefore, the impact recorder repeats the measurement and recording for a long time, during which time it must be attached to the item or packed together and treated in the same way as the item. The means for reading out the data stored in the impact recorder is connected to a personal computer or the like and communicated therewith.

[0003] For example, the impact detector of Japanese Patent No. 2666926 senses physical variables of physical changes that an article undergoes during handling operations such as packaging and shipping, and satisfies predetermined criteria. In an acceleration detecting method for recording a time history portion of the sensed physical variable, (a)
An acceleration in a range of ± 256 g due to a physical change in the X, Y, and Z axis directions is detected, and 0 corresponding to the detected acceleration is detected.
A program that stores an acceleration detection means, a clock means, a storage means, a communication means, a microprocessor means and a power supply for outputting an electric signal in a range of from 5.12 volts to a housing, and constitutes an instruction to the microprocessor means The acceleration is detected under the control of (1) and quantified, and the detected and quantified acceleration and the time when the acceleration is detected are stored in the storage unit, and the acceleration is detected by the acceleration detection unit. Attaching the housing to the article such that the applied acceleration is physically approximately equal to the article, and (b) subjecting the article to a handling operation such that the housing receives the same acceleration as the article; (C) detecting the acceleration exerted by the housing, and (d) detecting the acceleration that satisfies the predetermined criteria. Storing each time interval over time in said storage means, wherein said time interval is of a predetermined duration, and each said duration initially starts with an acceleration that satisfies said criterion; And
(E) The stored acceleration is read out from the storage means to a device outside the housing, and thereby, while the article is being handled, the magnitude of the acceleration, its occurrence time and occurrence frequency are determined by the article handling. Acceleration measurement method determined after execution. An acceleration detection / recording device that can be stored in the housing, wherein acceleration detection means for detecting acceleration due to a physical change in the X, Y, and Z directions and generating a quantified digital signal of the detected acceleration; Storage means for storing program instructions and data representing the digital signal; communication means for communicating with the separator by the digital information; and the acceleration detection means, clock means, storage means and communication means To read and execute the program instruction from the storage means, and to store the digital signal generated by the acceleration detection means and the storage means in the storage means during a time interval of a predetermined duration. Data representing both a digital timer signal generated by the clock means at the beginning of the duration Microprocessor means for controlling said communication means to start said time interval when at least one of said accelerations meets a predetermined criterion and to communicate with said separator by said digital information. The acceleration detection recording device provided with. Etc. are described.

In the shock storage unit disclosed in Japanese Patent No. 2719580, a processing module box having a built-in operation storage means for calculating and storing shock information from a shock detection signal and a sensor module box having a built-in shock sensor are separated. And a shock storage unit configured to supply a shock detection signal obtained from the sensor module box to the processing module box via a signal transmission medium, wherein the shock detection signal is an electric signal as the signal transmission medium. Using a signal transmission cable that transmits as
The signal transmission cable is connected to one or both of the sensor module box and the processing module box via a detachable connector, and further converts a shock wave signal output from the shock sensor into a voltage or current signal in the sensor module box. A signal converter for amplification is built in, and a battery for supplying power to the arithmetic storage means is built in the other processing module box, and the power of the battery is supplied to the signal converter in the sensor module box through the signal transmission cable. A shock memory unit characterized in that the shock memory unit is designed to be used. Is described.

[0005] Further, the shock data recording method and the shock data recording card for dropping a conveyed product disclosed in Japanese Patent Application Laid-Open No. 8-62240 collect and record the shock data received by the transported luggage L during transportation. A shock data recording card for detecting and storing a shock on the baggage L and transporting the card. After the transportation, the shock data recording card is loaded into a data display device to transfer the shock data. A method of recording impact data such as a drop of a transported product, characterized by obtaining a graph. In a housing formed in a card shape having a predetermined shape and a predetermined thickness, such as a rectangular shape, a small and thin impact detection sensor and an impact history recording means for storing a gravitational acceleration G value by an output in association with time are provided. A card for recording impact data, comprising: The G value memory is normally a memory for a fixed time, such as every minute, and stores a G value and a time in real time when a large G value of a predetermined value or more such as 10 G or more is input. An impact data recording card, characterized in that: And so on.

FIG. 1 is a block diagram showing the connection between a conventional shock recorder and a personal computer. The impact recorder 1 removed from the article etc.
Is connected to a reader of a personal computer or the like 2 via the.

[0007]

Since the conventional shock recorder is connected to a personal computer or the like for communication, the shock recorder must be removed or taken out of the package every time the stored record is read. . This is a very complicated operation, and it is often difficult to remove the impact recorder or take it out of the package at the time of extremely long transportation such as transportation by ship. Removing only the recording card does not provide much improvement.

Further, the impact (acceleration) received during long-term transportation
Requires a huge storage capacity,
It is possible, but not practical, to make such an impact recorder.

SUMMARY OF THE INVENTION The present invention solves the above-mentioned problems, and can read a record stored in an impact recorder without removing the impact recorder or taking it out of a package, and delete the recorded contents in the impact recorder (initialization). It is another object of the present invention to provide an impact recorder that enables the next recording to be started and, as a result, can record all of the long-term acceleration with a small recording capacity and easily read the acceleration.

[0010]

According to the present invention, a function of detecting an applied acceleration and a function of recording the detected acceleration are provided in an impact recorder for measuring and recording acceleration received by various operations of an article. The transmission of the recorded data is performed by wireless communication.

The setting of the calendar and clock in the shock recorder, the start and end of acceleration detection, and the like are performed by wireless communication.

[0012]

FIG. 2 is a structural view showing the structure of an impact recorder according to the present invention. The shock recorder 1 includes a sensor unit 8, a processing circuit board 9 (on which various processing circuits including a CPU, a transmitting circuit, a receiving circuit, etc. are mounted), a power source battery 4, a transmitting coil 5, a receiving coil 6, and a container 7. It is composed of
Each function will be described in detail below.

FIG. 3 is a block diagram showing one embodiment of the present invention. A signal output from the acceleration detection sensor unit 10 is input to the A / D converter 11. A / D converter 11
Converts an analog signal output from the acceleration detecting sensor unit 10 into a digital signal and outputs the digital signal to the CPU 12.
The CPU 12 takes in the output from the A / D converter 11 at a predetermined timing and records it in the recording unit 13 together with the information from the calendar unit 14 and the clock unit 15.

The fetch timing of the CPU 12 from the A / D converter 11 is a temporal timing from the calendar function and the clock function, or the output level from the A / D converter 11 is a certain fixed value or more. Various conditions are conceivable, for example. It goes without saying that the CPU 12 holds the timing conditions and has a function of determining the conditions. The CPU 12 keeps taking in the output of the A / D converter 11 according to the timing condition,
3 to store data. Even if the data to be stored is the output from the A / D converter 11 as it is, the A / D converter 1
The data obtained by converting the output from 1 into acceleration may be used.

As described with reference to FIG. 2, the main body of the shock recorder 1 incorporates a transmitting circuit 18, a receiving circuit 16, a transmitting coil 19, and a receiving coil 17, and spatially transmits a signal from the CPU 12. Alternatively, a spatial signal can be received and output to the CPU 12.

FIG. 4 is a block diagram at the time of communication showing one embodiment of the present invention. Reference numeral 21 denotes a shock recorder main body, which has a transmission / reception function. An IF unit 23 is connected to the personal computer 22. The IF unit 23 includes a receiving unit, a transmitting unit, a receiving coil, and a transmitting coil as in the main body of the shock recorder 21. Thus, a signal from the personal computer 22 can be transmitted spatially, or a spatial signal can be received and output to the personal computer 22.

Next, means for communication will be described.
1. From the personal computer 22, the impact recorder 21
A certain signal is transmitted so that the recording stored in the recording unit 13 is transmitted. 2. The signal is spatially transmitted via the IF unit 23, and the reception coil 1 in the shock recorder main body 21 is received.
7. Input to the CPU 12 via the receiving circuit 16.
3. Upon receiving the signal, the CPU 12 confirms that the signal is a signal instructed to transmit the record stored in the recording unit 13, and transmits the record stored in the recording unit 13 to the transmission circuit 1.
8 is output. 4. The signal spatially transmitted from the transmission circuit 18 via the transmission circuit 19 is taken into the personal computer 22 via the reception coil of the IF unit 23 and the reception circuit. Thus, the acceleration data captured by the impact recorder 21 is read into the personal computer 22 or the like. 5. Personal computer 22
Sends a signal to initialize the shock recorder 21 after receiving the signal. 6. The signal is input to the CPU 12 in the same manner as in 2,
The CPU 12 initializes the recording unit 13.

By the above means, the impact recorder main body can be removed from the article or without being taken out of the package.
It becomes possible to read the records stored in the impact recorder. In addition, since data can be read and the recording section initialized during handling and transport, repeating data reading and initialization of the recording section enables long-time data recording even if the recording section capacity is not very large. It is possible to get

Further, since both the shock recorder and the personal computer have transmission / reception functions, not only a signal for transmitting the stored record but also a signal for changing the setting in the main body of the shock recorder are transmitted. It is possible to transmit the data and receive and process the data with the shock recorder. For example, calendar settings, clock settings, A / D
This is the setting of the timing for taking in the output from the converter.

In the present embodiment, the transmitting coil and the receiving coil are divided into two, but one coil can be used together. It is also easy to incorporate the shock recorder number information into the signal that sends the stored data with a number etc. so that multiple shock recorders do not send the same acceleration data in the same way. Can be.

[0021]

According to the present invention, it is possible to read the stored records without removing the impact recorder main body from the article or taking it out of the package.

Even if the capacity of the recording unit of the shock recorder becomes insufficient due to long-term transportation or the like, data can be read before the recording unit capacity becomes insufficient, the recording unit is initialized, and recording can be restarted. The impact recorder can be made compact.

If a power source can be secured, it is possible to record an impact record for a long period of time even when goods are not transported, and the application range of the impact recorder has been widened.

[0024] The impact recorder can be incorporated into the article, and furthermore, it is possible to obscure that the impact recorder is attached.

Measurement conditions, recording conditions, and the like can be set and changed by wireless communication, so that measurement, recording, and reading of recording can be performed according to the purpose.

[Brief description of the drawings]

FIG. 1 is a block diagram showing a connection between a conventional impact recorder and a personal computer.

FIG. 2 is a structural diagram showing a configuration of an impact recorder of the present invention.

FIG. 3 is a block diagram showing an embodiment of the present invention.

FIG. 4 is a block diagram at the time of communication showing an embodiment of the present invention;

[Explanation of symbols]

 DESCRIPTION OF SYMBOLS 1 Shock recorder 2 Personal computer 3 Interface 4 Battery for power supply 5 Transmitting coil 6 Receiving coil 7 Container 8 Sensor unit 9 Processing circuit board 10 Sensor unit for acceleration detection 11 A / D converter 12 CPU 13 Recording unit 14 Calendar unit 15 Clock Unit 16 receiving circuit 17 receiving coil 18 transmitting circuit 19 transmitting coil 21 main body of impact recorder 22 personal computer 23 IF unit

 ────────────────────────────────────────────────── ─── Continuing on the front page (72) Inventor Masaki Shiozawa 4107 Miyota, Miyota-cho, Kitasaku-gun, Nagano Prefecture F5 term in Miyota Co., Ltd. 2F073 AA21 AB01 BB02 BC02 CC14 CD16 DD02 FF01 FG01 FG02 FG04 GG01 GG04

Claims (2)

[Claims] 1. An impact recorder for measuring and recording acceleration received by various operations of an article, the function having a function of detecting an applied acceleration and a function of recording a detected acceleration. An impact recorder characterized in that transmission is performed by wireless communication. 2. The setting of a calendar and a clock in the shock recorder,
2. The shock recorder according to claim 1, wherein setting of start and end of acceleration detection is performed by wireless communication.