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Auditory warning signals present method of multiple studies on ergonomic


Handled by the SPSS statistical package. 3.1 visual surveillance and analysis of job response errors in visual surveillance operations,[link widoczny dla zalogowanych], the pilot group responses were errors are small, isolated groups overlay group and the number of errors by test reactions of 66 of the total number of reactions and 6.94. But no significant difference between the two (}: o.93, P> o.05). The results show that overlay group and the separation of groups were tested in the operation of visual surveillance operations,[link widoczny dla zalogowanych], consistent with the work load of 32 test tones to identify errors and error types of overlay group, isolated group of experimental subjects the total number of syllable words to identify errors and error types of statistics Data show that: (1) to identify subjects with fewer errors on the alarm tone, superimposed group and the separation group the number of errors by test reactions of the total response of the number of 6.71 and 5.31,[link widoczny dla zalogowanych], there was no significant difference ((O.612 , P> 0.O5)). (2) 4 kinds of alarm signals, subjects the warning tone on t000Hz frequency identification error,[link widoczny dla zalogowanych], followed by the warning tone is 1600Hz frequency response of 3.3 superimposed auditory group, separate group was ? auditory reaction time, and test results show that : The superposition method or the presentation of multiple auditory signal separation method was tested on the auditory reaction time to identify warning signals had no significant effect (P values were more than O.05). Language intelligible voice alarm level of 3.4 the analysis of the experimental word intelligibility and sentence intelligibility of the two indicators to be tested in multiple auditory signal under the conditions presented in the language understandable degree of alarm voice. Intelligibility test words are words correctly report the number of alarm and warning statement,[link widoczny dla zalogowanych], statement of the actual number of 3O �� words Ergonomics March 1996 2 1 Suhuan basket Man 2 groups are superimposed component Joel Lyrics perception reaction time (1% seconds) Ha ? superimposed group isolated group of test results 0.62 (0.1 0.81 (O.17) 0.45 (0.2O) 0.85 (0.17) 0. 56 (0.21) 0.83 (o.17) f. B 3.55, P <O ��. �� Ratio. 100 refers to the sentence intelligibility test can be 100% correct statement in the report warning voice; 50% refers to the subjects to correctly report warning statement 5o; I may this on. From Table 3, Table 4 shows: whether word intelligibility, sentence intelligibility, or, in the multiple auditory signal under the conditions presented in the language intelligible voice alarm level, separate group of subjects were significantly better than the overlay group separation of the subjects were less than 0.01j group subjects correctly reported the number of terms for the warning statement alerting the actual words Wuzhou sentence number 83, while the overlay group and 56 subjects from the group of aromatic shuttle test report accurate and complete statement of the average alarm had reached Hing Wah Street West. 38 (a total of 4O sentence) f the superposition of only 13 groups were tested. ? J sentence. Interference based on information theory, the main cause of this result is nan ��lack of original} When using the superposition method for the presentation of multiple auditory signals, the multiple signal superimposed to the cyberspace may cause multiple signal deduction mutual interference, masking, thus affecting warning statement to be tested on the identification, understanding, and when presented with multiple auditory signal separation, because separation of multiple signal transmission from a different ear canal, the mutual interference between multiple signals, masking effects of relatively small, thereby increasing the subjects of Warning statements identify and understand the undecided. Superimposed group of subjects under two different rendering mode analysis of word intelligibility results also confirmed this inference. Presented in the two-signal conditions, the superimposed word intelligibility test group was significantly better than the three-signal task performance under the conditions of the operating performance showed \signal condition), the mutual interference between signals, fewer signals than masking the superposition (double signal condition), the performance so bad 4 Summary results of analysis and discussion from the start, we can draw the following conclusions: (1) frequency, high frequency tone as alarm tone, the identification error is higher than the low-frequency tone. (2) present in multiple auditory signal conditions, compared with the superposition method using separation as a method of presentation of multiple auditory signals contribute to the voice alarm language understanding. References l Zhu Zuxiang things eds. human engineering teaching. Hangzhou, Zhejiang Education Publishing Mu, 1994l333 ~ 4042MIL a contradictory D-1472DHumanenglneerlngdesigncrit ~ raf0rmilitarys ~ cstems, equipmentandfaciUtles.1989f39 ~ 463 Ge to the public, Zhu Zuxiang. the result of conflict and task difficulty on Education for the performance of dual Psychology, 1995; 27 (3) t247 ~ 253 [Received 1996, a O1-15)

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