KR20070013423A - Composite digital transmitter with a black box - Google Patents

Abstract

A complex digital transmitter including a black box function is provided to detect a detection signal by exchanging only a detection sensor capable of detecting a corresponding process. A complex digital transmitter including a black box function includes a process value sensor(300), an internal memory(60), a data record memory(44), and an analog/digital transmission output section(62). A display section(500) includes a manipulation key. A central processing unit(900) reads a material of the data record memory according to a manipulation signal of the manipulation key and transmits the material of the data record memory through a communication port(70).

Description

Composite Digital Transmitter with a black box

1 is a block diagram showing the configuration of a digital pressure gauge according to the prior art.

2 is a block diagram showing the configuration of a complex digital transmitter with a black box function according to the present invention.

* Explanation of symbols for the main parts of the drawings *

44: data record memory

62: digital / analog transmission output unit

300: process value sensor (temperature, pressure, flow rate, liquid level, density sensor)

500: display unit (operation key)

900: central processing unit

The present invention relates to a complex digital transmitter equipped with a black box function, and more specifically, the results measured by the process value sensor for measuring temperature, pressure, flow rate, liquid level, density, etc., by period (hour, minute, second, day). The present invention relates to a complex digital transmitter with a black box function, which is stored in units and provided as analysis data when an abnormal condition occurs.

In general, various types of pressure gauges, such as liquid pressure gauge, elastic pressure gauge, vacuum gauge and deadweight pressure gauge, are used according to the field and pressure measuring method to measure the pressure. As the pressure gauge, the liquid pressure gauge is a glass tube with water, mercury, alcohol, etc. A U-tube pressure gauge with a stiffness is typical, and the elastic pressure gauge is relatively widely used for industrial purposes, and mechanically enlarges the deformation occurring in a hydraulic body made of metal or the like to measure pressure.

The vacuum gauge is used to measure pressure lower than atmospheric pressure, and the deadweight tester is a kind of device for generating a standard pressure by weight.

Meanwhile, the applicant of the present invention (Application No. 2003-1335) uses a magnet and a reed switch that reacts to the magnet to easily adjust the zero point or change the measurement unit without opening the case, and to store the data in the internal memory. Digital pressure gauge to easily analyze the measured data by downloading the data through the communication port and digital pressure gauge to extend the life of the battery by switching the power to sleep mode when not in use at night or using the daylight sensor. A technique has been filed for.

That is, Figure 1 is a block diagram showing the configuration of a digital pressure gauge according to the prior art, as shown in the digital pressure gauge is a magnet 10, zero adjustment switch 20, pressure unit conversion switch 25, pressure Sensor 30, analog-to-digital converter 40, timer 45, display unit 50, internal memory 60, communication port 70, daylight sensor 80, central processing unit (CPU) ( 90) and a case 95. In the conventional digital pressure gauge configured as described above, first, when the magnet 10 approaches or retracts from the side at which the pressure unit conversion switch 25 is located, the pressure unit conversion switch 25 is turned on and off and the pressure unit Three types of kPa,% and mmHg are sequentially changed, and the user can use the pressure unit to be measured. When the magnet 10 approaches or retracts from the side where the zero control switch 20 is located, the zero control switch 20 is turned on and off, and the display unit 50 displays "Auto" and then "0.0". Is set. After setting as above, the pressure of the portion to be measured by the user using the pressure sensor 30 is measured, and the pressure value measured by the pressure sensor 30 is converted from the analog / digital converter 40 to digital. To the central processing unit (CPU) 90. The CPU 90 controls the digital value provided by the analog / digital converter 40 and the time information provided by the timer 45, and displays the digital value and the time information on the display unit 50. In addition, the central processing unit 90 stores the digital value and time information in the internal memory 60, and transmits the stored information to the outside through the communication port 70.

As shown in FIG. 1, the conventional digital manometer may be referred to as a type of digital transmitter because it performs a function of measuring pressure and delivering it to the outside. In the case of the conventional digital manometer transmitter, after a certain period of time The data was lost, and there was a problem that the site situation could not be accurately analyzed at that time.

In addition, the conventional digital pressure gauge transmitter only measures the pressure, and in order to measure temperature, flow rate, liquid level and density, it is necessary to replace the equipment with a sensor that can measure temperature, flow rate, liquid level and density. There was a lot of trouble.

In addition, conventionally, by temporarily storing measured data, if an abnormal condition occurs after a certain period of time, when it is necessary to know data of a previous or specific time period, for example, by time (for example, hour, minute, second) There is a problem in that the site status is not known exactly because the signals are not stored.

The present invention has been made to improve the above-mentioned problems, and further includes a data record memory unit having a black box function in the digital transmitter to read a change in process value through a process value sensor for a predetermined period when an abnormal condition occurs. The objective is to provide a complex digital transmitter with a new form of black box function that can be taken and understood.

It is another object of the present invention to provide a complex digital transmitter with a black box function for measuring temperature, flow rate, liquid level and density as well as pressure and storing them for each period.

According to a preferred embodiment of the present invention for achieving the above object, a composite with a black box function comprising a temperature sensor, an analog-to-digital converter, a timer, a display unit, an internal memory, a communication port, a central processing unit A digital transmitter, comprising: a process value sensor equipped with a sensor capable of sensing at least one of temperature, flow rate, liquid level, and density, for detecting at least one of temperature, flow rate, level, and density; and a signal detected from the process value sensor An internal memory and a data record memory for converting and storing the data through an analog / digital converter, and an analog / digital transmission output unit for transmitting and outputting a current corresponding to a sensing value transmitted from the process value sensor. Further provided with an operation key for the operation of the, Central processing unit is characterized in that it takes the poison material in the memory data records transmitted via the communications port in response to an operation signal of the control key from any error.

Preferably, the data memory serves as a kind of black box, a memory capable of storing data even when the device is in an off state, and has a capacity of several tens to hundreds of gigabytes, and includes a period (for example, daily or hourly). As long as a week or so a month) data is classified and stored, it is characterized in that initially set to the read prohibited state.

Also preferably, the display unit may include windows for displaying data on temperature, pressure, flow rate, liquid level, and density, respectively.

Hereinafter, a complex digital transmitter with a black box function according to an embodiment of the present invention will be described in detail with reference to the accompanying drawings.

Figure 2 is a block diagram showing a preferred example of a complex digital transmitter with a black box function according to the present invention.

As shown in FIG. 2, a block diagram of a complex digital transmitter with an overall black box function is similar to that of the embodiment of FIG. 1, and the same reference numerals will be used to describe the same parts.

2, the complex digital transmitter with a black box function according to the present invention is a temperature sensor 46, an analog-to-digital converter 40, a timer 45, the display unit 500, the data when an abnormal condition occurs Communication value for downloading or transmitting 70, Process value sensor 300 for detecting at least one of temperature, flow rate, liquid level and density is equipped with a sensor capable of sensing at least one of temperature, flow rate, liquid level and density, Internal memory 60 and data record memory 44 for converting and storing signals sensed from the central processing unit (CPU) 900, the case 95, and the process value sensor 300 through the analog / digital converter 40. ), An analog / digital transmission output unit 62 which transmits and outputs a current corresponding to a sensing value transmitted from the process value sensor 300. The temperature sensor 46 represents a sensor for measuring the temperature around the position where the process value sensor 300 for detecting one of temperature, pressure, flow rate, liquid level, and density is installed.

The analog / digital transmission output unit 62 which transmits and outputs a current corresponding to a sensing value transmitted from the process value sensor 300 outputs in the range of 1-5V in the case of voltage as an international public communication code, and in the case of current Output in the range of 4-20mA.

The process value sensor 300 represents a sensor for measuring the physical properties of the measurement target. The process value sensor 300 may be installed to replace the detection sensor that can detect the temperature, pressure, flow rate, liquid level and density to detect one of temperature, pressure, flow rate, liquid level and density.

The display unit 500 further includes an operation key for operating the device, and the CPU 900 reads data from the data record memory 44 according to an operation signal of the operation key when an abnormality occurs. Transmission through the communication port 70.

The process value sensor 300 includes, for example, a temperature sensor capable of sensing a temperature, a flow sensor capable of sensing a flow rate, a liquid level sensing sensor capable of sensing a liquid level, and a density sensing sensor capable of sensing a density. Can be. The process value sensor is installed so that a required process can sense data on a process corresponding to any of temperature, pressure, flow rate, liquid level and density.

The central processing unit 900 converts the signal detected from the process value sensor 300 through the analog / digital converter 40, and then stores the internal memory 60 together with the data at that time and the temperature value through the temperature sensor 46. And the data record memory 44.

The data record memory 44 acts as a kind of black box (also referred to as a data logger function), and is a memory capable of storing data (data related to a phenomenon) even when the device is turned off. A capacity of several tens to hundreds of gigabytes, and is connected to the communication port 70 to store data under the control of the central processing unit 900, and for each period (for example, daily, hourly, hourly, minutely). The data record memory 44 may be initially set in a read-protected state, and may be stored only for writing. For example, when an abnormal state occurs, the data of the data record memory unit 44 is processed by operating an operation key through the display unit 500. Taking poison under the control of the value 900 may be sent or downloaded to the external (the central monitoring apparatus).

The display unit 500 has windows for displaying data on temperature, pressure, flow rate, liquid level, and density, respectively, and further includes an operation key.

It looks at the operation of the integrated digital transmitter with a black box function according to the present invention configured as described above.

Initially, the sensing operation is performed through a process value sensor 300 equipped with a sensing sensor to be detected among temperature, pressure, flow rate, liquid level, and density. Thereafter, the CPU 900 converts the signal detected from the process value sensor 300 through the analog / digital converter 40 and stores the signal in the internal memory 60 and the data memory 44. At this time, the analog / digital transmission output unit 62 transmits an output (current) corresponding to the sensed signal. The CPU 900 together with the output current output from the analog / digital transmission output unit 62 and the value read from the temperature sensor 46 at the time, to the internal memory 60 and the data memory 44. Save it.

The data stored in the internal memory 60 may be downloaded by the user through the communication port 70. At this time, the display of the corresponding data of the data is displayed on the display unit 500 with downloading.

If the user or the administrator wants to know the total data of one week or one month ago, the central processing unit is selected by selecting a black box data read (for example) button (not shown) through the operation key of the display unit 500. Under the control of 900, the stored data record memory 44 may be read for each period (for example, for one day for one week or longer for each day). The data of the read data record memory 44 is transmitted or downloaded to the outside through the communication port 70.

According to the present invention as described in detail, to overcome the shortcomings of the digital pressure gauge transmitter, which transmits only the pressure of the prior art and preserves the data when the device is turned off after delivery, and detects not only the pressure but also the temperature, flow rate, liquid level and density. It is possible to easily detect the detection signal by replacing only the detection sensor that can detect the process without having to purchase individual equipment and to classify and store the data for each period. It is effective to perform the box function. That is, a useful invention having the effect of increasing the user convenience of the device since the process change amount from the time of the occurrence of the abnormal period to the increase and decrease of the process change and the data on the surrounding environment (analysis of the abnormal state can be checked) can be identified. to be.

On the other hand, the present invention is not limited only to the above-described embodiments and can be carried out by modifications and variations within the scope not departing from the gist of the present invention, the technical spirit to which such modifications and variations are applied also to the following utility model registration claims It must be seen as belonging.

Claims (3)

Temperature sensor 46, analog-to-digital converter 40, timer 45, display unit 500, the internal memory 60, communication port 70, the central processing unit (CPU) 900 In the complex digital transmitter with black box function, A process value sensor 300 mounted with a sensor capable of sensing at least one of temperature, flow rate, level and density, for detecting at least one of temperature, flow rate, level and density; An internal memory 60 and a data record memory 44 for converting and storing a signal sensed by the process value sensor 300 through an analog / digital converter 40; It includes an analog / digital transmission output unit 62 for transmitting and outputting a current corresponding to the sensing value transmitted from the process value sensor 300, The display unit 500 further includes an operation key for operating the device, and the CPU 900 reads data from the data record memory 44 according to an operation signal of the operation key when an abnormality occurs. Complex digital transmitter with a black box function, characterized in that the transmission through the communication port (70). The method of claim 1, The data record memory 44 acts as a kind of black box, and is a memory capable of storing data even when the device is in an off state. The data record memory 44 has a capacity of tens to hundreds of gigabytes, and is provided for each period (for example, by date, It is a complex digital transmitter equipped with a black box function, characterized in that the data is classified and stored at the time of one week for a month or so) and initially set to read-protected state. The method of claim 1, The display unit 500 has a black box function, characterized in that each window has a window for displaying data on the temperature, pressure, flow rate, liquid level and density.

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