KR101582201B1

KR101582201B1 - An equipment status watchdog system

Info

Publication number: KR101582201B1
Application number: KR1020150148216A
Authority: KR
Inventors: 차기종; 신요순; 김대일; 김형철
Original assignee: 주식회사 엔에스이
Priority date: 2015-10-23
Filing date: 2015-10-23
Publication date: 2016-01-05

Abstract

A system for monitoring usage of a device according to a present invention comprises: a power connection cable including a connection unit for a device and a connection unit for a power supply; a power sensor for measuring a value of power flowing in the power connection cable; a microprocessor for receiving the power from the power connection cable and receiving a signal from the power sensor; and an Ethernet controller connected to the microprocessor. The present invention may monitor whether a management target device is normally used and may take rapid measures when an abnormal state occurs.

Description

An equipment status watchdog system

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a device usage monitoring system, and more particularly, to a system for monitoring normal use of a device to be managed and movement and departure of the device to be managed.

Today, various electric devices are widely used in industrial fields. In particular, devices used for radiation or non-destructive testing use radioisotopes such as radium, radon, cobalt-60, and cesium-137 in the form of sealed sources. It is absolutely necessary.

In particular, if a device using a radiation source is stolen or lost, it may be exposed to inadequate radiation management conditions and may jeopardize public health, so strict control and management is required in its use.

Korean Patent Laid-Open Publication No. 10-2004-0016933 published in 2004 discloses a technique for determining the position of a radiation source and a radiological apparatus by attaching a position information transmitting apparatus to measure the position of the radiation source and the radiological apparatus. Korean Patent No. 10-0960538 discloses a remote monitoring method of mobile radiation sources.

However, these are mainly applied to the monitoring of mobile radiation source, and it is difficult to apply the reality that management neglect exists because it is based on the sincere management of radiation source users.

Currently, more than 5,000 businesses use fixed radiation sources in Korea. Especially when they are closed or business is poor, it is difficult to expect sincere management. Therefore, if the radiation source is left unattended for a long time, Do. The same technique is also required for devices that handle various hazardous materials or require high-level management.

The present invention mainly aims at monitoring equipment equipped with dangerous goods, and provides a device usage monitoring system that enables the control center to grasp the situation even when the management target device is detached from the installation site or is not used for a long period of time .

The apparatus use monitoring system according to the present invention includes a power connection cable having a device side connection part and a power source side connection part, a power sensor for measuring a power value flowing through the power connection cable, A receiving microprocessor, and an Ethernet controller connected to the microprocessor.

The microprocessor according to the present invention includes a memory for storing a reference value and outputs a status signal according to a result of comparing a power value measured by the power sensor with a reference value and transmits the status signal to the Ethernet controller.

The reference value according to the present invention may include a plurality of reference values, and the status signal classification may include a no-power state, a standby power state, and a busy state according to a comparison result between the reference value and the measured power value.

The status signal according to the present invention may be transmitted together with the unique number of the monitoring system.

The present invention may include a power supply for supplying power to the microprocessor and a rechargeable battery for receiving power from the power supply and supplying power to the microprocessor.

The present invention is characterized in that it includes a contact sensor which is fixed to a device-side connection part of a power connection cable and supplies a sensing signal to a microprocessor, and the microprocessor outputs a device desorption signal according to the sensing signal size of the touch sensor .

The touch sensor according to the present invention may include a circuit in which a sensing signal is generated by an elastically actuated switch.

The device use monitoring system according to the present invention has an effect that the usage status signal of the management subject device is periodically generated and transmitted to the control server so that the management subject device can be managed and supervised. The device use monitoring system according to the present invention has an effect that it is possible to continuously monitor the use of the device even when the power is lost.

Further, the device use monitoring system according to the present invention transmits an apparatus desorption signal, so that it is possible to know whether the management subject device has deviated from the reporting position.

INDUSTRIAL APPLICABILITY The present invention is capable of monitoring whether or not the use of the management subject device is normally performed, and has the effect of enabling quick measures to be taken when an abnormality occurs.

1 is a block diagram of a device usage monitoring system according to the present invention.
2 is a diagram illustrating an example of a touch sensor of the device usage monitoring system according to the present invention.

Hereinafter, specific embodiments according to the present invention will be described. The present invention may, however, be embodied in many different forms and should not be construed as limited to the embodiments set forth herein. BRIEF DESCRIPTION OF THE DRAWINGS The accompanying drawings, which are included to provide a further understanding of the invention and are incorporated in and constitute a part of this application, illustrate embodiments of the invention and, together with the description, serve to explain the principles of the invention.

An embodiment of the device usage monitoring system 10 according to the present invention may include a power supply connection cable 100, a power sensor 200, a microprocessor 300, And an Ethernet controller 400 (Ethernet Controller).

The power connection cable 100 has a device-side connection portion 110 and a power-source-side connection portion 120. The device-side connection unit 110 is a connection unit for connecting the power cord of the management subject device 910 and the power source-side connection unit 120 is a connection unit that can be inserted into the cord insertion port 920 of an external power source installed on a building wall. The device use monitoring system 10 is provided with a chassis and the device side connection unit 110 is installed to be exposed to the outside of the chassis so that the power cord of the device 910 can be inserted, And can be inserted into the cord insertion opening 920 of the external power source installed on the building wall surface or the like.

A current is generated in the lead of the power connection cable 100 according to the power used by the device 910 and the power sensor 200 transmits the power measurement value to the microprocessor 300. [ At this time, the power measurement value is digitized by an analog-to-digital converter. The power sensor does not necessarily measure the wattage accurately but it is sufficient to measure the RMS (Root Mean Square) current value or the relative power value to relatively measure the magnitude of the power flowing in the power connecting cable. Therefore, a conventional wattmeter or amperemeter may be used as the power sensor.

The microprocessor 300 receives power from the power connection cable 100 and receives a power value signal of the power sensor 200. [

The microprocessor 300 includes a memory 600 storing a predetermined reference value and outputs a use state signal according to a result of comparing the power value measured by the power sensor 200 with a reference value, ).

The use status signal is framed according to the Ethernet standard by the Ethernet controller (400) connected to the microprocessor (300) and transmitted to the control server through the Internet. As the Ethernet controller 400, for example, RTL8019 of Realtek or CS8900 of Cirrus can be used.

The Ethernet controller 400 may be connected to an Ethernet interface provided with an RJ45 connector 410 or may be connected to the wireless modem 500 through an Ethernet interface.

And is connected to the Internet through an RJ45 connector 410. In an environment where an intranet is not provided, a wireless modem 500 is connected to the Internet. The wireless modem is equipped with a GPS engine and can be used for location tracking.

It is preferable that the reference value is composed of a plurality of two or more, and the use state signal can be classified into a no-power state, a standby power state, and a use state according to a result of comparison between a reference value and a measured power value. For example, there is a range of power values that occur during normal operation depending on the characteristics of the device, and a range of power values that are ON for standby. Also, when the power switch of the device is turned off or the power cord is disconnected, the power value becomes zero. Therefore, by comparing the power value signal measured by the power sensor 200 with a reference value appropriately so as to determine the state, it is possible to generate a state signal classified into a busy state, a standby power state, and a no power state.

The device use monitoring system 10 is assigned a unique number, and the status signal is transmitted together with the unique number. The unique number may be stored in the memory 600 of the microprocessor 300 or the physical address of the Ethernet controller 400 may be used as a unique number.

In addition, the physical address or the IP address of the control server is stored in the memory 600, and the use state signal and a device removal signal, which will be described later, are transmitted to the control server with the destination address being the destination address.

A power supply 700 may be provided to supply power to the microprocessor 300 and a rechargeable battery 710 supplied with power from the power supply 700 may be provided. The rechargeable battery 710 supplies power to the microprocessor 300 even in the event of a power failure or other power loss so that the control server can continuously receive the status signal.

The contact sensor 800 can be fixedly mounted on the device-side connection portion 110 of the power supply connection cable 100. The contact sensor 800 supplies a sensing signal to the microprocessor 300. The sensing signal is digitized by the AD converter. The microprocessor 300 outputs a device desorption signal according to the magnitude of the sensing signal of the touch sensor 800. There is a reference value set for the sensing signal, and a device desorption signal is determined according to the comparison result. The device desorption signal is transmitted to the control server together with the status signal.

The contact sensor 800 generates a sensing signal according to whether or not the power cord of the management subject device 910 is connected to the device-side connection unit 110. The contact sensor can be implemented electronically or mechanically.

In the case of the electronic contact sensor, for example, the size of the sensing signal changes depending on whether the power cord of the management subject device 910 is sufficiently close to the device-side connection portion 110 by using the infrared object detection sensor, The control unit 300 outputs a device detachment signal indicating whether the device 910 is connected to the source monitoring system 10 or not, according to the magnitude of the sensing signal, and transmits the device detachment signal to the control server.

The mechanical contact sensor 800 may detect the power cord 910 of the device 910 when the power cord 911 of the managed device 910 is inserted into the device-side connection 110 as shown, for example, And a circuit in which a sensing signal (Signal Output) is generated by a switch that is resiliently operated by the pressing of the spring 911.

The device usage monitoring system according to the present invention is preferably provided to a facility using the management subject device so as to be continuously operated in a state where the devices are connected.

The device usage monitoring system according to the present invention periodically generates a usage status signal indicating how the management subject device is used and transmits the usage status signal to the control server. The usage status signal can be continuously transmitted even in the case of temporary power loss.

Further, the device use monitoring system according to the present invention generates a device detachment signal and transmits the device detachment signal to the control server so that it can be determined whether the managed device is taken out to the outside from the originally reported position or simply the power switch of the device is turned off It does.

The control server is located in the management supervisory authority of the management subject device, and stores the list of the notified management subject devices, related information such as the owner company and address. The control server periodically collects the status signal of each device and the device detachment signal to monitor whether the device is normally used. If the device is interrupted for a certain period of time or the device is removed from the installation location, And to take necessary measures.

The invention described above is susceptible to various modifications within the scope not impairing the basic idea. Therefore, all of the above embodiments are to be construed as illustrative and not restrictive. Accordingly, the scope of protection of the present invention is not limited to the above-described embodiments, but is defined by the appended claims. The substitution of the appended claims for equivalents is within the scope of the appended claims.

10: Device usage monitoring system
100: Power connection cable
110: Device side connection part
120: Power supply side connection
200: Power Sensor
300: Microprocessor
400: Ethernet Controller (Ethernet Controller)
410: RJ45 connector
500: Wireless MODEM
600: Memory
700: Power Supply
710: Rechargeable battery
800: Contact Sensor
910: Managed devices
911: Power cord of the unit
920: External power cord inlet

Claims

A power connection cable having a device side connection and a power source side connection;
A power sensor for measuring a power value flowing through the power connection cable;
A microprocessor receiving power from the power connection cable and receiving a signal from the power sensor;
An Ethernet controller connected to the microprocessor; And
And a contact sensor fixed to the device-side connection portion of the power connection cable and supplying a sensing signal to the microprocessor,
Wherein the microprocessor outputs a device desorption signal according to a sensing signal size of the touch sensor.

The method according to claim 1,
Wherein the microprocessor has a memory for storing a reference value and outputs a status signal to the Ethernet controller according to a result of comparing the power value measured by the power sensor with a reference value.

3. The method of claim 2,
Wherein the reference value comprises a plurality of states, and the state signal classification includes a no-power state, a standby power state, and a use state according to a result of comparison between the reference value and the measured power value.

3. The method of claim 2,
Wherein the status signal is transmitted together with a unique number of the monitoring system.

The method according to claim 1,
A power supply for supplying power to the microprocessor, and a rechargeable battery for receiving power from the power supply and supplying power to the microprocessor.

delete

The method according to claim 1,
Wherein the touch sensor includes a circuit in which a sensing signal is generated by an elastically actuated switch.