A second-line tester for intercom system

A communication system and detector technology, applied in the direction of monitoring/monitoring/test arrangement, etc., can solve the problems of uncommon use of second-line detectors, lack of system supporting joint test, etc., and achieve the effect of strong versatility

CN103237138BActive Publication Date: 2015-12-02SHAANXI AIRCRAFT CORPORATION
2 Cites 0 Cited by

Patent Information

Authority / Receiving Office
CN · China
Patent Type
Patents(China)
Current Assignee / Owner
Publication Date
2015-12-02

Smart Images

  • Figure 1
    Figure 1
  • Figure 2
    Figure 2
  • Figure 3
    Figure 3
Patent Text Reader

Abstract

The invention belongs to the field of aviation special equipment testing, particularly relates to a two-wire detector of an intercom system. The two-wire detector comprises a two-wire detector device, 28 V direct-current power supply, a low-frequency signal simulator, a digital multimeter, a digital millivolt meter and a low-impedance headphone. The low-frequency signal simulator and the digital multimeter are connected with the two-wire detector device respectively. The digital millivolt meter is connected with the digital millivolt meter two-wire detector device and the low-frequency signal simulator respectively. The low-impedance headphone is connected with the two-wire detector device and the digital multimeter respectively. The two-wire detector is strong in versatility; by the aid of the two-wire detector, intercom signal detection can be realized, crosslinking tests of the two-wire detector with ultrashort wave and shortwave radio can be performed; the two-wire detector can be used for detecting functions of collision warning tone, autopilot warning tone, centralized warning tone, ground proximity warning tone, DME (distance measuring equipment) warning tone and decision height warning; and the two-wire detector can be used for detecting performance of hotline communication of airborne tasks, stimulating working states of the intercom system on a plane and detecting intercom performances of an entire set of intercom system, and can realize tests on various models of intercom systems.
Need to check novelty before this filing date? Find Prior Art

Description

technical field

[0001] The invention belongs to the field of aviation special equipment testing, in particular to a second-line detector for an in-flight communication system. Background technique

[0002] At present, there is no universal tester for various types of intercom equipment. The current testers are all special-purpose, do not have the ability to expand, and cannot meet the performance tests of current multi-model intercom systems. In order to realize various types of intercom equipment To test the performance of the system, a universal tester is developed to meet the test of various types of intercom systems. Since the internal communication system of each new digital machine has not changed much, only the external interface, emergency function, hotline function, external bus address, etc. have been added, and the overall change is not large, which is convenient for system integration. In the development process, it is necessary to analyze the characteristics an...

Examples

Embodiment Construction

[0012] Below in conjunction with accompanying drawing the present invention is described in further detail, please refer to Figure 1 to Figure 3 .

[0013] Such as figure 1 As shown, a second-line tester for an intercom system includes a second-line detection device 1, a 28V DC power supply 2, a low-frequency signal simulator 3 and a digital multimeter 4 respectively connected to the second-line detection device 1, and a digital multimeter 4, respectively. A digital millivolt meter 5 connected to the second-line detection device 1 and the low-frequency signal simulator 3 , and a low-impedance earphone 6 connected to the second-line detection device 1 and the digital multimeter 4 respectively.

[0014] figure 1 The medium 28V DC power supply 2 provides working power for the second-line detection equipment 1 and the product under test; the output signal of the low-frequency signal simulator 3 is sent to the second-line detection equipment 1 and then input to the product under...