CN203798513U - Helium mass spectrometer data change detection additional apparatus - Google Patents

Abstract

The utility model relates to a helium mass spectrometer data change detection additional apparatus composed of a data input interface, a data shaping module, a reference clock module, a key setting module, an alarm prompting module, a data display module, an information processing module, and a watchdog module. The data input interface is connected with the data shaping module. The data shaping module is connected with the information processing module. The reference clock module, the key setting module, the alarm prompting module, the data display module, and the watchdog module are all connected with the information processing module. The helium mass spectrometer data change detection additional apparatus dynamically monitors the change rate of detection data outputted by a helium mass spectrometer in real time, and performs alarm prompt according to a set data change threshold values in order to notify an operator.

Description

A kind of helium mass analyzer data variation detects attachment device

Technical field

The utility model relates to a kind of helium mass analyzer data variation and detects attachment device.

Background technology

Conventional helium mass analyzer generally can only be set the upper limit threshold values that detects data, data have exceeded upper limit threshold values, instrument is reported to the police, but the alarming threshold value that generally all there is no setting data rate of change, namely within the unit interval, such as 1 second, the variation that detects data is how many, owing to finding in some practical applications, some detected object of helium mass analyzer allows to produce gas leakage, or inevitably can there are some gas leakage, and we are concerned about, be that detected object is within the extremely short unit interval, whether produced sharply or unacceptable gas leakage, this utility model has realized a kind of helium mass analyzer data variation by circuit design and certain programmed algorithm and has detected attachment device for this reason.

Summary of the invention

For above the deficiencies in the prior art, the purpose of this utility model is to provide a kind of helium mass analyzer data variation and detects attachment device.The utility model adopts following technical scheme:

A kind of helium mass analyzer data variation detects attachment device, it is characterized in that: it arranges module, alarm module, data disaply moudle, message processing module, watchdog module by Data Input Interface, data shaping module, reference clock module, button and forms, described Data Input Interface connection data Shaping Module, data shaping module link information processing module, reference clock module, button arrange module, alarm module, data disaply moudle, watchdog module and are all connected with message processing module.

According to a kind of helium mass analyzer data variation claimed in claim 1, detect attachment device, it is characterized in that: Data Input Interface (1-2) is that a RS232 turns TTL interface.

By this device, can realize the dynamic Real-Time Monitoring to helium mass analyzer output test data rate of change, and according to the data variation threshold values of setting, carry out alarm at any time, with this, notify in time operating personnel, now the detection data variation of helium mass analyzer is excessive, please notes again and checks.

Accompanying drawing explanation

Fig. 1 is structural representation of the present utility model; Wherein:

1-helium mass analyzer original system; 2-attachment device; 1-1-helium mass analyzer; 1-2-data output interface; 2-1-Data Input Interface; 2-2-data shaping module; 2-3-reference clock module; 2-4-button arranges module; 2-5-alarm module; 2-6-data disaply moudle; 2-7-message processing module; 2-8-watchdog module.

Fig. 2 is data processing software process flow diagram of the present utility model;

Embodiment

For describing mentality of designing of the present utility model and method in detail, below in conjunction with accompanying drawing, be elaborated.

As shown in Figure 1, helium mass analyzer data variation detects an attachment device, its by Data Input Interface, data shaping module, message processing module, data disaply moudle, alarm module, reference clock module, button module is set, watchdog module forms.

In the normal process of using of helium mass analyzer, it is the serial ports concentrations of helium data that constantly outwards output collects in real time by data output interface, because its output is RS232 signal, so when being entered into our attachment device, must be carried out signal and be converted to TTL signal, the effect of Here it is Data Input Interface, data are by after being Data Input Interface, in data shaping module, carry out, after the series of preprocessing such as shaping of several signals, sending into message processing module.This module is the core component of whole attachment device, its effect is to gather, analyze, process front end to send next signal to, reference clock module provides the necessary time sequential routine for message processing module, watchdog module is used for preventing that system program from crashing, data disaply moudle is for the auxiliary data that collect that show, alarm module is for generation of alerting signal, and key-press module is for setting the data variation threshold values of warning.

The routine processes flow process of this attachment device as shown in Figure 2, after system starts, first program carries out initialization operation, if failure, provide initialization failure alarm, and re-start initialization, after initialization success, program starts continuous coverage data, here adopt a kind of mode that is called 2-D data queue to gather, be in program, to open up two buffer zones, each buffer length 10, according to the flow process of Fig. 2, gather successively two groups of data, and calculate respectively its mean value V1 and V2, the collection period of each data is set as 0.05 second, after such 20 data acquisitions, the time is just 1 second, by calculating absolute value V that V1 subtracts V2: V=|V1-V2|, in the unit interval, be namely in 1 second, the rate of change of helium mass analyzer output data just can draw thus.The data transformation threshold values of setting in Vs representation program in figure, if V>Vs, program provides the excessive alarm of data variation rate, otherwise will not report to the police.The setting of Vs can arrange module and set by the button providing in Fig. 1.

A kind of helium mass analyzer data variation above the utility model example being provided detects attachment device and is described in detail; for one of ordinary skill in the art; thought according to the utility model example; in embodiment and range of application, have certain change part; in sum; this description should not be construed as restriction of the present utility model, and all any changes of making according to the utility model design philosophy all should be within protection domain of the present utility model.

Claims (2)

1. a helium mass analyzer data variation detects attachment device, it is characterized in that: it is by Data Input Interface (2-1), data shaping module (2-2), reference clock module (2-3), button arranges module (2-4), alarm module (2-5), data disaply moudle (2-6), message processing module (2-7), watchdog module (2-8) forms, described Data Input Interface (2-1) connection data Shaping Module (2-2), data shaping module (2-2) link information processing module (2-7), reference clock module (2-3), button arranges module (2-4), alarm module (2-5), data disaply moudle (2-6), watchdog module (2-8) is all connected with message processing module (2-7).

2. according to a kind of helium mass analyzer data variation claimed in claim 1, detect attachment device, it is characterized in that: described Data Input Interface (2-1) is that a RS232 turns TTL interface.