CN104181840A - One-line bus monitoring device capable of realizing local searching and address setting and implementation method thereof - Google Patents
One-line bus monitoring device capable of realizing local searching and address setting and implementation method thereof Download PDFInfo
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- CN104181840A CN104181840A CN201410388897.XA CN201410388897A CN104181840A CN 104181840 A CN104181840 A CN 104181840A CN 201410388897 A CN201410388897 A CN 201410388897A CN 104181840 A CN104181840 A CN 104181840A
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Abstract
The invention relates to a one-line bus monitoring device capable of realizing local searching and address setting and an implementation method thereof. The one-line bus monitoring device comprises a power supply circuit, a singlechip microcomputer minimum system, a communication interface circuit, a one-line bus interface circuit, a display module and a keyboard module, wherein the power supply circuit provides operating voltage; the singlechip microcomputer minimum system is connected with a monitoring host and a temperature measuring cable through the communication interface circuit and the one-line bus interface circuit respectively, sends bus control signals to a one-line device on the temperature measuring cable and receives signals fed back by the one-line device, and the singlechip microcomputer minimum system processes the received signals and transmits the processed signals to the display module to display; and the keyboard module is provided with four function keys which are an ESC key, an UP key, a DOWN key and an ENTER key, functions of the keyboard module are expanded by using three combination keys which are ESC+UP, ESC+DOWN and ESC+ENTER, and selection for corresponding functions and switching in measurement point temperature information display are carried out through the keyboard module.
Description
Technical field
The present invention relates to a kind of monitoring device and implementation method, particularly about a kind of one-wire bus monitoring device and implementation method that can realize search on the spot and address setting.
Background technology
One-wire bus refers to and only utilizes a signal wire and one as realize the bus of digital communication with reference to the line of return on ground, utilizes one-wire bus technology can realize being overlapped on access and the control of several line devices in this bus.One line device is the device of observing one-wire bus agreement and realizing certain measuring ability, and during Mei Zhiyixian device factory, equal etching has unique ID code.Wherein a most typical line device is a line digital temperature sensor DS18B20.Several line digital temperature sensors are connected on a twisted-pair cable according to the requirement of monitoring location, form a cable for measuring temperature.In one-wire bus monitoring system, often adopt one-wire bus monitoring device to carry out monitoring management to cable for measuring temperature.
While utilizing monitoring host computer, one-wire bus monitoring device and cable for measuring temperature to build one-wire bus monitoring system, need to one-wire bus monitoring device be configured and be debugged, comprising sensor search and address, arrange.When carrying out sensor search, need monitoring host computer to send search instruction to one-wire bus monitoring device, one-wire bus monitoring device could start the search to temperature sensor.In practical application, when being installed on scene and having debugged cable for measuring temperature for one-wire bus monitoring device, just need the monitoring host computer in special messenger's compounding practice distant place, the mode that this employing Long-distance Control is searched for temperature sensor is made troubles to practical application.In the master-slave mode communication network forming at monitoring host computer and one-wire bus monitoring device, when guaranteeing that monitoring host computer is given an order, only there is an one-wire bus monitoring device response, different addresses is set need to all one-wire bus monitoring devices.While building one-wire bus monitoring system in prior art, need to move configuration software by monitoring host computer arranges the address of one-wire bus monitoring device one by one, after the address of one-wire bus monitoring device has arranged, could access one-wire bus monitoring system, this mode address of one-wire bus monitoring device being arranged by monitoring host computer is made troubles to practical application.
Summary of the invention
For the problems referred to above, the object of this invention is to provide a kind of one-wire bus monitoring device and implementation method that can realize search on the spot and address setting.
For achieving the above object, the present invention takes following technical scheme: a kind of realization searched for the one-wire bus monitoring device arranging with address on the spot, it is characterized in that: it comprises power circuit, single-chip minimum system, communication interface circuit, one-wire bus interface circuit, display module and Keysheet module; Described power circuit is described single-chip minimum system, communication interface circuit, one-wire bus interface circuit, display module and Keysheet module power supply; Described single-chip minimum system is connected with cable for measuring temperature with monitoring host computer respectively with one-wire bus interface circuit by described communication interface circuit, and the signal that comprises the temperature information that temperature sensor ID, temperature sensor detect that sends bus control signal and receive that a line device feeds back to the line device on cable for measuring temperature, described single-chip minimum system transfers to described display module after the signal receiving is processed and shows; ESC, UP, DOWN and tetra-function buttons of ENTER are set in described Keysheet module, and utilize ESC+UP, ESC+DOWN and tri-Macintoshs of ESC+ENTER to expand the function of described Keysheet module, by described Keysheet module, carry out the switching of corresponding function selection and the demonstration of measuring point temperature information.
Described single-chip minimum system comprises that initialization module, address arrange module, search module, monitoring processing module and non-volatile memory district on the spot; After described power circuit is described single-chip minimum system, communication interface circuit, one-wire bus interface circuit, display module and Keysheet module power supply, described single-chip minimum system arranges the initialization state of one-wire bus monitoring device by described initialization module, and from described non-volatile memory district, recall one-wire bus monitoring device address, the quantity of the temperature sensor cable for measuring temperature that connects and the ID code of temperature sensor, then enter in keyboard scan and monitoring function cycle for the treatment of; Described single-chip minimum system scans the button of described Keysheet module, and according to key scan result, address setting, search or carry out the keyboard Processing tasks under work at present state are on the spot carried out in the change of described single-chip minimum system.
The implementation method of the one-wire bus monitoring device arranging with address is searched in a kind of described realization on the spot, it comprises the following steps: 1) power circuit is single-chip minimum system, communication interface circuit, one-wire bus interface circuit, after display module and Keysheet module power supply, single-chip minimum system arranges the initialization state of one-wire bus monitoring device by initialization module, Bing Cong non-volatile memory district recalls the address of one-wire bus monitoring device, the quantity of the temperature sensor on cable for measuring temperature that connects and the ID code of temperature sensor, then enter in keyboard scan and monitoring function cycle for the treatment of, 2) single-chip minimum system scans the button of Keysheet module, according to key scan result, single-chip minimum system change initialization state, address arranges state, keyboard Processing tasks under search inquiry state or execution work at present state, it specifically comprises: (1) is realized address by following steps function is set: 1. initialization module carries out initialization to single-chip minimum system, after this single-chip minimum system enters the circular treatment state of keyboard scan inquiry and monitoring function, it is initialization state, by Keysheet module, press ESC+UP key, single-chip minimum system enters address state is set, start the address code of one-wire bus monitoring device to arrange, address arranges coding transmission to display module and shows, 2. under address arranges state, by Keysheet module, press UP key or DOWN key, address arranges module geocoding is added to 1 or subtract 1 operation, and address code is transferred to display module shows, 3. under address arranges state, by Keysheet module, press ENTER key, address arranges module and stores being written to non-volatile memory district after the address code confirmation of new settings, completes address and arranges and return to initialization state, 4. under address arranges state, by Keysheet module, press esc key, single-chip minimum system is abandoned the storage of address code and is returned to initialization state, and monitoring processing module continues the line device on cable for measuring temperature to monitor by one-wire bus interface circuit, (2) by following steps, realize function of search on the spot: 1. initialization module carries out initialization to single-chip minimum system, after this single-chip minimum system enters the circular treatment state of keyboard scan inquiry and monitoring function, it is initialization state, by Keysheet module, press ESC+ENTER key, single-chip minimum system will enter search inquiry state, and be shown on display module, 2. under search condition on the spot, by Keysheet module, press ENTER key, single-chip minimum system will call search module on the spot, start searching process, search module is searched for the line device on cable for measuring temperature according to the signal receiving on the spot, Search Results transfers to that display module shows and write non-volatile memory district by single-chip minimum system stores, after having searched for, single-chip minimum system starts by embedded watchdog reset, 3. under search condition on the spot, by Keysheet module, press esc key, single-chip minimum system exits search inquiry state and returns to initialization state, and monitoring processing module continues the line device on cable for measuring temperature to monitor by one-wire bus interface circuit.
The present invention is owing to taking above technical scheme, and it has the following advantages: the present invention is owing to being provided with power circuit, single-chip minimum system, communication interface circuit, one-wire bus interface circuit, display module and Keysheet module; The human-computer interaction interface that wherein Keysheet module and display module are monitoring device, by controlling of Keysheet module, make single-chip minimum system in different duties, and complete the address of one-wire bus monitoring device of the present invention is arranged according to the step of setting and method, and the line device on cable for measuring temperature is searched on the spot, address setting and on the spot search procedure show by display module; Therefore the present invention can overcome in prior art and must can complete that address arranges and work to a line device search on cable for measuring temperature by monitoring host computer, thereby makes to apply when of the present invention convenient, quick.Based on above advantage, the present invention can be widely used in the observation process of one-wire bus device.
Accompanying drawing explanation
Fig. 1 is the structural representation of one-wire bus monitoring device of the present invention
Fig. 2 is that one-wire bus monitoring device of the present invention is searched for the process flow diagram arranging with address on the spot
Embodiment
Below in conjunction with drawings and Examples, the present invention is described in detail.
As shown in Figure 1, one-wire bus monitoring device of the present invention and monitoring host computer, cable for measuring temperature form one-wire bus monitoring system.One-wire bus monitoring device of the present invention comprises power circuit 1, single-chip minimum system 2, communication interface circuit 3, one-wire bus interface circuit 4, display module 5 and Keysheet module 6.Wherein, power circuit 1 is single-chip minimum system 2, communication interface circuit 3, one-wire bus interface circuit 4, display module 5 and Keysheet module 6 power supplies.Single-chip minimum system 2 by embedded initialization module 21, address module 22 is set, search module 23, monitoring processing module 24He non-volatile memory district 25 realize the one-wire bus monitoring function of monitoring modular on the spot.Single-chip minimum system 2 carries out communication by communication interface circuit 3 and monitoring host computer (not shown), single-chip minimum system 2 is connected with cable for measuring temperature (not shown) by one-wire bus interface circuit 4, and the signal that comprises the information such as temperature that temperature sensor ID, temperature sensor detect that sends bus control signal and receive that a line device feeds back to the line device on cable for measuring temperature, single-chip minimum system 2 transfers to display module 5 after the signal receiving is processed and shows.ESC, UP, DOWN and tetra-function buttons of ENTER are set in Keysheet module 6, and utilize the function of ESC+UP, ESC+DOWN and tri-Macintosh extended keyboard modules 6 of ESC+ENTER.By Keysheet module 6, carry out the switching of function selection and the demonstration of measuring point temperature information.
Adopt one-wire bus monitoring device of the present invention to realize address and arrange and the temperature sensor on cable for measuring temperature is realized on the spot and being searched for, it specifically comprises the following steps:
1) after power circuit 11 is single-chip minimum system 2, communication interface circuit 3, one-wire bus interface circuit 4, display module 5 and Keysheet module 6 power supplies, single-chip minimum system 2 arranges the initialization state of one-wire bus monitoring device by initialization module 21, Bing Cong non-volatile memory district 25 recall one-wire bus monitoring device address, the quantity of the temperature sensor on cable for measuring temperature that connects and the ID code of temperature sensor, then enter in keyboard scan and monitoring function cycle for the treatment of.
2) as shown in Figure 2, the button of 2 pairs of Keysheet modules 6 of single-chip minimum system scans, according to key scan result, single-chip minimum system 2 change initialization states, address arrange the duties such as state or search inquiry state or carry out the keyboard Processing tasks under work at present state, and it specifically comprises following content:
(1) address arranges;
By following steps, realize address function be set:
1. 21 pairs of single-chip minimum systems of initialization module 2 carry out initialization, after this single-chip minimum system 2 enters the circular treatment state of keyboard scan inquiry and monitoring function, it is initialization state, by Keysheet module 6, press ESC+UP key, single-chip minimum system 2 enters address state is set, start the address code of one-wire bus monitoring device to arrange, address arranges coding transmission to display module 5 and shows.
2. under address arranges state, by Keysheet module 6, press UP key or DOWN key, address arranges 22 pairs of geocodings of module and adds 1 or subtract 1 operation, and address code is transferred to display module 5 shows.
3. under address arranges state, by Keysheet module 6, press ENTER key, address arranges module 22 and stores being written to non-volatile memory district 25 after the address code confirmation of new settings, completes address and arranges and return to initialization state.
4. under address arranges state, by Keysheet module 6, press esc key, single-chip minimum system 2 is abandoned the storage of address code and is returned to initialization state, and monitoring processing module 24 continues the line device on cable for measuring temperature to monitor by one-wire bus interface circuit 4.
(2) search on the spot;
By following steps, realize function of search on the spot:
1. 21 pairs of single-chip minimum systems of initialization module 2 carry out initialization, after this single-chip minimum system 2 enters the circular treatment state of keyboard scan inquiry and monitoring function, it is initialization state, by Keysheet module 6, press ESC+ENTER key, single-chip minimum system 2 will enter search inquiry state, and be shown on display module 5.
2. under search condition on the spot, by Keysheet module 6, press ENTER key, single-chip minimum system 2 will call search module 23 on the spot, start searching process.Search module 23 is searched for the line device on cable for measuring temperature according to the signal receiving on the spot.Search Results transfers to that display module 5 shows and write non-volatile memory district 25 by single-chip minimum system 2 stores; After having searched for, single-chip minimum system 2 can start by embedded watchdog reset.
3. under search condition on the spot, by Keysheet module 6, press esc key, single-chip minimum system 2 exits search inquiry state and returns to initialization state, and monitoring processing module 24 continues the line device on cable for measuring temperature to monitor by one-wire bus interface circuit 4.
Above-described embodiment is only for illustrating the present invention; wherein the structure of each parts, connected mode and method step etc. all can change to some extent; every equivalents of carrying out on the basis of technical solution of the present invention and improvement, all should not get rid of outside protection scope of the present invention.
Claims (3)
1. the one-wire bus monitoring device arranging with address is searched in realization on the spot, it is characterized in that: it comprises power circuit, single-chip minimum system, communication interface circuit, one-wire bus interface circuit, display module and Keysheet module; Described power circuit is described single-chip minimum system, communication interface circuit, one-wire bus interface circuit, display module and Keysheet module power supply; Described single-chip minimum system is connected with cable for measuring temperature with monitoring host computer respectively with one-wire bus interface circuit by described communication interface circuit, and the signal that comprises the temperature information that temperature sensor ID, temperature sensor detect that sends bus control signal and receive that a line device feeds back to the line device on cable for measuring temperature, described single-chip minimum system transfers to described display module after the signal receiving is processed and shows; ESC, UP, DOWN and tetra-function buttons of ENTER are set in described Keysheet module, and utilize ESC+UP, ESC+DOWN and tri-Macintoshs of ESC+ENTER to expand the function of described Keysheet module, by described Keysheet module, carry out the switching of corresponding function selection and the demonstration of measuring point temperature information.
2. the one-wire bus monitoring device arranging with address is searched in realization as claimed in claim 1 on the spot, it is characterized in that: described single-chip minimum system comprises that initialization module, address arrange module, search module, monitoring processing module and non-volatile memory district on the spot;
After described power circuit is described single-chip minimum system, communication interface circuit, one-wire bus interface circuit, display module and Keysheet module power supply, described single-chip minimum system arranges the initialization state of one-wire bus monitoring device by described initialization module, and from described non-volatile memory district, recall one-wire bus monitoring device address, the quantity of the temperature sensor cable for measuring temperature that connects and the ID code of temperature sensor, then enter in keyboard scan and monitoring function cycle for the treatment of;
Described single-chip minimum system scans the button of described Keysheet module, and according to key scan result, address setting, search or carry out the keyboard Processing tasks under work at present state are on the spot carried out in the change of described single-chip minimum system.
3. an implementation method for the one-wire bus monitoring device arranging with address is searched in realization as claimed in claim 1 or 2 on the spot, and it comprises the following steps:
1) after power circuit is single-chip minimum system, communication interface circuit, one-wire bus interface circuit, display module and Keysheet module power supply, single-chip minimum system arranges the initialization state of one-wire bus monitoring device by initialization module, Bing Cong non-volatile memory district recall one-wire bus monitoring device address, the quantity of the temperature sensor on cable for measuring temperature that connects and the ID code of temperature sensor, then enter in keyboard scan and monitoring function cycle for the treatment of;
2) single-chip minimum system scans the button of Keysheet module, according to key scan result, single-chip minimum system change initialization state, address arrange state, search inquiry state or carry out the keyboard Processing tasks under work at present state, and it specifically comprises:
(1) by following steps, realize address function be set:
1. initialization module carries out initialization to single-chip minimum system, after this single-chip minimum system enters the circular treatment state of keyboard scan inquiry and monitoring function, it is initialization state, by Keysheet module, press ESC+UP key, single-chip minimum system enters address state is set, start the address code of one-wire bus monitoring device to arrange, address arranges coding transmission to display module and shows;
2. under address arranges state, by Keysheet module, press UP key or DOWN key, address arranges module geocoding is added to 1 or subtract 1 operation, and address code is transferred to display module shows;
3. under address arranges state, by Keysheet module, press ENTER key, address arranges module and stores being written to non-volatile memory district after the address code confirmation of new settings, completes address and arranges and return to initialization state;
4. under address arranges state, by Keysheet module, press esc key, single-chip minimum system is abandoned the storage of address code and is returned to initialization state, and monitoring processing module continues the line device on cable for measuring temperature to monitor by one-wire bus interface circuit;
(2) by following steps, realize function of search on the spot:
1. initialization module carries out initialization to single-chip minimum system, after this single-chip minimum system enters the circular treatment state of keyboard scan inquiry and monitoring function, it is initialization state, by Keysheet module, press ESC+ENTER key, single-chip minimum system will enter search inquiry state, and be shown on display module;
2. under search condition on the spot, by Keysheet module, press ENTER key, single-chip minimum system will call search module on the spot, start searching process; Search module is searched for the line device on cable for measuring temperature according to the signal receiving on the spot; Search Results transfers to that display module shows and write non-volatile memory district by single-chip minimum system stores; After having searched for, single-chip minimum system starts by embedded watchdog reset;
3. under search condition on the spot, by Keysheet module, press esc key, single-chip minimum system exits search inquiry state and returns to initialization state, and monitoring processing module continues the line device on cable for measuring temperature to monitor by one-wire bus interface circuit.
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| CN201410388897.XA CN104181840B (en) | 2014-08-08 | 2014-08-08 | Realize search is arranged on the spot one-wire bus monitoring device and implementation method with address |
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| CN201410388897.XA CN104181840B (en) | 2014-08-08 | 2014-08-08 | Realize search is arranged on the spot one-wire bus monitoring device and implementation method with address |
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| CN104181840B CN104181840B (en) | 2016-10-19 |
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Cited By (1)
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| CN104181840B (en) | 2016-10-19 |
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